668889640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{3019}}^1$

素因数の和:3250

約数の個数: 64

約数和(自身を含む): 1565568000

約数和(自身を除く): 896678360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 191, 232, 290, 382, 580, 764, 955, 1160, 1528, 1910, 3019, 3820, 5539, 6038, 7640, 11078, 12076, 15095, 22156, 24152, 27695, 30190, 44312, 55390, 60380, 87551, 110780, 120760, 175102, 221560, 350204, 437755, 576629, 700408, 875510, 1153258, 1751020, 2306516, 2883145, 3502040, 4613032, 5766290, 11532580, 16722241, 23065160, 33444482, 66888964, 83611205, 133777928, 167222410, 334444820, 668889640]

約数ペア:

[(1, 668889640), (2, 334444820), (4, 167222410), (5, 133777928), (8, 83611205), (10, 66888964), (20, 33444482), (29, 23065160), (40, 16722241), (58, 11532580), (116, 5766290), (145, 4613032), (191, 3502040), (232, 2883145), (290, 2306516), (382, 1751020), (580, 1153258), (764, 875510), (955, 700408), (1160, 576629), (1528, 437755), (1910, 350204), (3019, 221560), (3820, 175102), (5539, 120760), (6038, 110780), (7640, 87551), (11078, 60380), (12076, 55390), (15095, 44312), (22156, 30190), (24152, 27695)]