19972260

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{131}}^1$

素因数の和:175

約数の個数: 216

約数和(自身を含む): 76684608

約数和(自身を除く): 56712348

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 28, 30, 33, 35, 36, 42, 44, 45, 55, 60, 63, 66, 70, 77, 84, 90, 99, 105, 110, 121, 126, 131, 132, 140, 154, 165, 180, 198, 210, 220, 231, 242, 252, 262, 308, 315, 330, 363, 385, 393, 396, 420, 462, 484, 495, 524, 605, 630, 655, 660, 693, 726, 770, 786, 847, 917, 924, 990, 1089, 1155, 1179, 1210, 1260, 1310, 1386, 1441, 1452, 1540, 1572, 1694, 1815, 1834, 1965, 1980, 2178, 2310, 2358, 2420, 2541, 2620, 2751, 2772, 2882, 3388, 3465, 3630, 3668, 3930, 4235, 4323, 4356, 4585, 4620, 4716, 5082, 5445, 5502, 5764, 5895, 6930, 7205, 7260, 7623, 7860, 8253, 8470, 8646, 9170, 10087, 10164, 10890, 11004, 11790, 12705, 12969, 13755, 13860, 14410, 15246, 15851, 16506, 16940, 17292, 18340, 20174, 21615, 21780, 23580, 25410, 25938, 27510, 28820, 30261, 30492, 31702, 33012, 38115, 40348, 41265, 43230, 47553, 50435, 50820, 51876, 55020, 60522, 63404, 64845, 76230, 79255, 82530, 86460, 90783, 95106, 100870, 110957, 121044, 129690, 142659, 151305, 152460, 158510, 165060, 181566, 190212, 201740, 221914, 237765, 259380, 285318, 302610, 317020, 332871, 363132, 443828, 453915, 475530, 554785, 570636, 605220, 665742, 713295, 907830, 951060, 998613, 1109570, 1331484, 1426590, 1664355, 1815660, 1997226, 2219140, 2853180, 3328710, 3994452, 4993065, 6657420, 9986130, 19972260]

約数ペア:

[(1, 19972260), (2, 9986130), (3, 6657420), (4, 4993065), (5, 3994452), (6, 3328710), (7, 2853180), (9, 2219140), (10, 1997226), (11, 1815660), (12, 1664355), (14, 1426590), (15, 1331484), (18, 1109570), (20, 998613), (21, 951060), (22, 907830), (28, 713295), (30, 665742), (33, 605220), (35, 570636), (36, 554785), (42, 475530), (44, 453915), (45, 443828), (55, 363132), (60, 332871), (63, 317020), (66, 302610), (70, 285318), (77, 259380), (84, 237765), (90, 221914), (99, 201740), (105, 190212), (110, 181566), (121, 165060), (126, 158510), (131, 152460), (132, 151305), (140, 142659), (154, 129690), (165, 121044), (180, 110957), (198, 100870), (210, 95106), (220, 90783), (231, 86460), (242, 82530), (252, 79255), (262, 76230), (308, 64845), (315, 63404), (330, 60522), (363, 55020), (385, 51876), (393, 50820), (396, 50435), (420, 47553), (462, 43230), (484, 41265), (495, 40348), (524, 38115), (605, 33012), (630, 31702), (655, 30492), (660, 30261), (693, 28820), (726, 27510), (770, 25938), (786, 25410), (847, 23580), (917, 21780), (924, 21615), (990, 20174), (1089, 18340), (1155, 17292), (1179, 16940), (1210, 16506), (1260, 15851), (1310, 15246), (1386, 14410), (1441, 13860), (1452, 13755), (1540, 12969), (1572, 12705), (1694, 11790), (1815, 11004), (1834, 10890), (1965, 10164), (1980, 10087), (2178, 9170), (2310, 8646), (2358, 8470), (2420, 8253), (2541, 7860), (2620, 7623), (2751, 7260), (2772, 7205), (2882, 6930), (3388, 5895), (3465, 5764), (3630, 5502), (3668, 5445), (3930, 5082), (4235, 4716), (4323, 4620), (4356, 4585)]