645240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{283}}^1$

素因数の和:316

約数の個数: 64

約数和(自身を含む): 2044800

約数和(自身を除く): 1399560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 283, 285, 380, 456, 566, 570, 760, 849, 1132, 1140, 1415, 1698, 2264, 2280, 2830, 3396, 4245, 5377, 5660, 6792, 8490, 10754, 11320, 16131, 16980, 21508, 26885, 32262, 33960, 43016, 53770, 64524, 80655, 107540, 129048, 161310, 215080, 322620, 645240]

約数ペア:

[(1, 645240), (2, 322620), (3, 215080), (4, 161310), (5, 129048), (6, 107540), (8, 80655), (10, 64524), (12, 53770), (15, 43016), (19, 33960), (20, 32262), (24, 26885), (30, 21508), (38, 16980), (40, 16131), (57, 11320), (60, 10754), (76, 8490), (95, 6792), (114, 5660), (120, 5377), (152, 4245), (190, 3396), (228, 2830), (283, 2280), (285, 2264), (380, 1698), (456, 1415), (566, 1140), (570, 1132), (760, 849)]