128385240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{8167}}^1$

素因数の和:8312

約数の個数: 64

約数和(自身を含む): 388143360

約数和(自身を除く): 259758120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 131, 262, 393, 524, 655, 786, 1048, 1310, 1572, 1965, 2620, 3144, 3930, 5240, 7860, 8167, 15720, 16334, 24501, 32668, 40835, 49002, 65336, 81670, 98004, 122505, 163340, 196008, 245010, 326680, 490020, 980040, 1069877, 2139754, 3209631, 4279508, 5349385, 6419262, 8559016, 10698770, 12838524, 16048155, 21397540, 25677048, 32096310, 42795080, 64192620, 128385240]

約数ペア:

[(1, 128385240), (2, 64192620), (3, 42795080), (4, 32096310), (5, 25677048), (6, 21397540), (8, 16048155), (10, 12838524), (12, 10698770), (15, 8559016), (20, 6419262), (24, 5349385), (30, 4279508), (40, 3209631), (60, 2139754), (120, 1069877), (131, 980040), (262, 490020), (393, 326680), (524, 245010), (655, 196008), (786, 163340), (1048, 122505), (1310, 98004), (1572, 81670), (1965, 65336), (2620, 49002), (3144, 40835), (3930, 32668), (5240, 24501), (7860, 16334), (8167, 15720)]