256428120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{164377}}^1$

素因数の和:164404

約数の個数: 64

約数和(自身を含む): 828465120

約数和(自身を除く): 572037000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 164377, 328754, 493131, 657508, 821885, 986262, 1315016, 1643770, 1972524, 2136901, 2465655, 3287540, 3945048, 4273802, 4931310, 6410703, 6575080, 8547604, 9862620, 10684505, 12821406, 17095208, 19725240, 21369010, 25642812, 32053515, 42738020, 51285624, 64107030, 85476040, 128214060, 256428120]

約数ペア:

[(1, 256428120), (2, 128214060), (3, 85476040), (4, 64107030), (5, 51285624), (6, 42738020), (8, 32053515), (10, 25642812), (12, 21369010), (13, 19725240), (15, 17095208), (20, 12821406), (24, 10684505), (26, 9862620), (30, 8547604), (39, 6575080), (40, 6410703), (52, 4931310), (60, 4273802), (65, 3945048), (78, 3287540), (104, 2465655), (120, 2136901), (130, 1972524), (156, 1643770), (195, 1315016), (260, 986262), (312, 821885), (390, 657508), (520, 493131), (780, 328754), (1560, 164377)]