84910780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{881}}^1$

素因数の和:1030

約数の個数: 48

約数和(自身を含む): 183738240

約数和(自身を除く): 98827460

約数列:

[1, 2, 4, 5, 10, 20, 61, 79, 122, 158, 244, 305, 316, 395, 610, 790, 881, 1220, 1580, 1762, 3524, 4405, 4819, 8810, 9638, 17620, 19276, 24095, 48190, 53741, 69599, 96380, 107482, 139198, 214964, 268705, 278396, 347995, 537410, 695990, 1074820, 1391980, 4245539, 8491078, 16982156, 21227695, 42455390, 84910780]

約数ペア:

[(1, 84910780), (2, 42455390), (4, 21227695), (5, 16982156), (10, 8491078), (20, 4245539), (61, 1391980), (79, 1074820), (122, 695990), (158, 537410), (244, 347995), (305, 278396), (316, 268705), (395, 214964), (610, 139198), (790, 107482), (881, 96380), (1220, 69599), (1580, 53741), (1762, 48190), (3524, 24095), (4405, 19276), (4819, 17620), (8810, 9638)]