81783240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:252

約数の個数: 256

約数和(自身を含む): 313528320

約数和(自身を除く): 231745080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 53, 55, 56, 60, 66, 70, 77, 84, 88, 105, 106, 110, 120, 132, 140, 154, 159, 165, 167, 168, 210, 212, 220, 231, 264, 265, 280, 308, 318, 330, 334, 371, 385, 420, 424, 440, 462, 501, 530, 583, 616, 636, 660, 668, 742, 770, 795, 835, 840, 924, 1002, 1060, 1113, 1155, 1166, 1169, 1272, 1320, 1336, 1484, 1540, 1590, 1670, 1749, 1837, 1848, 1855, 2004, 2120, 2226, 2310, 2332, 2338, 2505, 2915, 2968, 3080, 3180, 3340, 3498, 3507, 3674, 3710, 4008, 4081, 4452, 4620, 4664, 4676, 5010, 5511, 5565, 5830, 5845, 6360, 6680, 6996, 7014, 7348, 7420, 8162, 8745, 8851, 8904, 9185, 9240, 9352, 10020, 11022, 11130, 11660, 11690, 12243, 12859, 13992, 14028, 14696, 14840, 16324, 17490, 17535, 17702, 18370, 20040, 20405, 22044, 22260, 23320, 23380, 24486, 25718, 26553, 27555, 28056, 32648, 34980, 35070, 35404, 36740, 38577, 40810, 44088, 44255, 44520, 46760, 48972, 51436, 53106, 55110, 61215, 61957, 64295, 69960, 70140, 70808, 73480, 77154, 81620, 88510, 97361, 97944, 102872, 106212, 110220, 122430, 123914, 128590, 132765, 140280, 154308, 163240, 177020, 185871, 192885, 194722, 212424, 220440, 244860, 247828, 257180, 265530, 292083, 308616, 309785, 354040, 371742, 385770, 389444, 486805, 489720, 495656, 514360, 531060, 584166, 619570, 681527, 743484, 771540, 778888, 929355, 973610, 1062120, 1168332, 1239140, 1363054, 1460415, 1486968, 1543080, 1858710, 1947220, 2044581, 2336664, 2478280, 2726108, 2920830, 3407635, 3717420, 3894440, 4089162, 5452216, 5841660, 6815270, 7434840, 8178324, 10222905, 11683320, 13630540, 16356648, 20445810, 27261080, 40891620, 81783240]

約数ペア:

[(1, 81783240), (2, 40891620), (3, 27261080), (4, 20445810), (5, 16356648), (6, 13630540), (7, 11683320), (8, 10222905), (10, 8178324), (11, 7434840), (12, 6815270), (14, 5841660), (15, 5452216), (20, 4089162), (21, 3894440), (22, 3717420), (24, 3407635), (28, 2920830), (30, 2726108), (33, 2478280), (35, 2336664), (40, 2044581), (42, 1947220), (44, 1858710), (53, 1543080), (55, 1486968), (56, 1460415), (60, 1363054), (66, 1239140), (70, 1168332), (77, 1062120), (84, 973610), (88, 929355), (105, 778888), (106, 771540), (110, 743484), (120, 681527), (132, 619570), (140, 584166), (154, 531060), (159, 514360), (165, 495656), (167, 489720), (168, 486805), (210, 389444), (212, 385770), (220, 371742), (231, 354040), (264, 309785), (265, 308616), (280, 292083), (308, 265530), (318, 257180), (330, 247828), (334, 244860), (371, 220440), (385, 212424), (420, 194722), (424, 192885), (440, 185871), (462, 177020), (501, 163240), (530, 154308), (583, 140280), (616, 132765), (636, 128590), (660, 123914), (668, 122430), (742, 110220), (770, 106212), (795, 102872), (835, 97944), (840, 97361), (924, 88510), (1002, 81620), (1060, 77154), (1113, 73480), (1155, 70808), (1166, 70140), (1169, 69960), (1272, 64295), (1320, 61957), (1336, 61215), (1484, 55110), (1540, 53106), (1590, 51436), (1670, 48972), (1749, 46760), (1837, 44520), (1848, 44255), (1855, 44088), (2004, 40810), (2120, 38577), (2226, 36740), (2310, 35404), (2332, 35070), (2338, 34980), (2505, 32648), (2915, 28056), (2968, 27555), (3080, 26553), (3180, 25718), (3340, 24486), (3498, 23380), (3507, 23320), (3674, 22260), (3710, 22044), (4008, 20405), (4081, 20040), (4452, 18370), (4620, 17702), (4664, 17535), (4676, 17490), (5010, 16324), (5511, 14840), (5565, 14696), (5830, 14028), (5845, 13992), (6360, 12859), (6680, 12243), (6996, 11690), (7014, 11660), (7348, 11130), (7420, 11022), (8162, 10020), (8745, 9352), (8851, 9240), (8904, 9185)]