81871020

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{179}}^1$

素因数の和:226

約数の個数: 288

約数和(自身を含む): 321753600

約数和(自身を除く): 239882580

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 27, 28, 30, 33, 35, 36, 42, 44, 45, 54, 55, 60, 63, 66, 70, 77, 84, 90, 99, 105, 108, 110, 121, 126, 132, 135, 140, 154, 165, 179, 180, 189, 198, 210, 220, 231, 242, 252, 270, 297, 308, 315, 330, 358, 363, 378, 385, 396, 420, 462, 484, 495, 537, 540, 594, 605, 630, 660, 693, 716, 726, 756, 770, 847, 895, 924, 945, 990, 1074, 1089, 1155, 1188, 1210, 1253, 1260, 1386, 1452, 1485, 1540, 1611, 1694, 1790, 1815, 1890, 1969, 1980, 2079, 2148, 2178, 2310, 2420, 2506, 2541, 2685, 2772, 2970, 3222, 3267, 3388, 3465, 3580, 3630, 3759, 3780, 3938, 4158, 4235, 4356, 4620, 4833, 5012, 5082, 5370, 5445, 5907, 5940, 6265, 6444, 6534, 6930, 7260, 7518, 7623, 7876, 8055, 8316, 8470, 9666, 9845, 10164, 10395, 10740, 10890, 11277, 11814, 12530, 12705, 13068, 13783, 13860, 15036, 15246, 16110, 16335, 16940, 17721, 18795, 19332, 19690, 20790, 21659, 21780, 22554, 22869, 23628, 24165, 25060, 25410, 27566, 29535, 30492, 32220, 32670, 33831, 35442, 37590, 38115, 39380, 41349, 41580, 43318, 45108, 45738, 48330, 50820, 53163, 55132, 56385, 59070, 64977, 65340, 67662, 68915, 70884, 75180, 76230, 82698, 86636, 88605, 91476, 96660, 106326, 108295, 112770, 114345, 118140, 124047, 129954, 135324, 137830, 151613, 152460, 165396, 169155, 177210, 194931, 206745, 212652, 216590, 225540, 228690, 248094, 259908, 265815, 275660, 303226, 324885, 338310, 354420, 372141, 389862, 413490, 433180, 454839, 457380, 496188, 531630, 584793, 606452, 620235, 649770, 676620, 744282, 758065, 779724, 826980, 909678, 974655, 1063260, 1169586, 1240470, 1299540, 1364517, 1488564, 1516130, 1819356, 1860705, 1949310, 2274195, 2339172, 2480940, 2729034, 2923965, 3032260, 3721410, 3898620, 4093551, 4548390, 5458068, 5847930, 6822585, 7442820, 8187102, 9096780, 11695860, 13645170, 16374204, 20467755, 27290340, 40935510, 81871020]

約数ペア:

[(1, 81871020), (2, 40935510), (3, 27290340), (4, 20467755), (5, 16374204), (6, 13645170), (7, 11695860), (9, 9096780), (10, 8187102), (11, 7442820), (12, 6822585), (14, 5847930), (15, 5458068), (18, 4548390), (20, 4093551), (21, 3898620), (22, 3721410), (27, 3032260), (28, 2923965), (30, 2729034), (33, 2480940), (35, 2339172), (36, 2274195), (42, 1949310), (44, 1860705), (45, 1819356), (54, 1516130), (55, 1488564), (60, 1364517), (63, 1299540), (66, 1240470), (70, 1169586), (77, 1063260), (84, 974655), (90, 909678), (99, 826980), (105, 779724), (108, 758065), (110, 744282), (121, 676620), (126, 649770), (132, 620235), (135, 606452), (140, 584793), (154, 531630), (165, 496188), (179, 457380), (180, 454839), (189, 433180), (198, 413490), (210, 389862), (220, 372141), (231, 354420), (242, 338310), (252, 324885), (270, 303226), (297, 275660), (308, 265815), (315, 259908), (330, 248094), (358, 228690), (363, 225540), (378, 216590), (385, 212652), (396, 206745), (420, 194931), (462, 177210), (484, 169155), (495, 165396), (537, 152460), (540, 151613), (594, 137830), (605, 135324), (630, 129954), (660, 124047), (693, 118140), (716, 114345), (726, 112770), (756, 108295), (770, 106326), (847, 96660), (895, 91476), (924, 88605), (945, 86636), (990, 82698), (1074, 76230), (1089, 75180), (1155, 70884), (1188, 68915), (1210, 67662), (1253, 65340), (1260, 64977), (1386, 59070), (1452, 56385), (1485, 55132), (1540, 53163), (1611, 50820), (1694, 48330), (1790, 45738), (1815, 45108), (1890, 43318), (1969, 41580), (1980, 41349), (2079, 39380), (2148, 38115), (2178, 37590), (2310, 35442), (2420, 33831), (2506, 32670), (2541, 32220), (2685, 30492), (2772, 29535), (2970, 27566), (3222, 25410), (3267, 25060), (3388, 24165), (3465, 23628), (3580, 22869), (3630, 22554), (3759, 21780), (3780, 21659), (3938, 20790), (4158, 19690), (4235, 19332), (4356, 18795), (4620, 17721), (4833, 16940), (5012, 16335), (5082, 16110), (5370, 15246), (5445, 15036), (5907, 13860), (5940, 13783), (6265, 13068), (6444, 12705), (6534, 12530), (6930, 11814), (7260, 11277), (7518, 10890), (7623, 10740), (7876, 10395), (8055, 10164), (8316, 9845), (8470, 9666)]