87721620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{631}}^1$

素因数の和:981

約数の個数: 96

約数和(自身を含む): 282003456

約数和(自身を除く): 194281836

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 331, 420, 631, 662, 993, 1262, 1324, 1655, 1893, 1986, 2317, 2524, 3155, 3310, 3786, 3972, 4417, 4634, 4965, 6310, 6620, 6951, 7572, 8834, 9268, 9465, 9930, 11585, 12620, 13251, 13902, 17668, 18930, 19860, 22085, 23170, 26502, 27804, 34755, 37860, 44170, 46340, 53004, 66255, 69510, 88340, 132510, 139020, 208861, 265020, 417722, 626583, 835444, 1044305, 1253166, 1462027, 2088610, 2506332, 2924054, 3132915, 4177220, 4386081, 5848108, 6265830, 7310135, 8772162, 12531660, 14620270, 17544324, 21930405, 29240540, 43860810, 87721620]

約数ペア:

[(1, 87721620), (2, 43860810), (3, 29240540), (4, 21930405), (5, 17544324), (6, 14620270), (7, 12531660), (10, 8772162), (12, 7310135), (14, 6265830), (15, 5848108), (20, 4386081), (21, 4177220), (28, 3132915), (30, 2924054), (35, 2506332), (42, 2088610), (60, 1462027), (70, 1253166), (84, 1044305), (105, 835444), (140, 626583), (210, 417722), (331, 265020), (420, 208861), (631, 139020), (662, 132510), (993, 88340), (1262, 69510), (1324, 66255), (1655, 53004), (1893, 46340), (1986, 44170), (2317, 37860), (2524, 34755), (3155, 27804), (3310, 26502), (3786, 23170), (3972, 22085), (4417, 19860), (4634, 18930), (4965, 17668), (6310, 13902), (6620, 13251), (6951, 12620), (7572, 11585), (8834, 9930), (9268, 9465)]