645262125

素因数分解:

$3^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{947}}^1$

素因数の和:1067

約数の個数: 64

約数和(自身を含む): 1135779840

約数和(自身を除く): 490517715

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 79, 115, 125, 237, 345, 375, 395, 575, 947, 1185, 1725, 1817, 1975, 2841, 2875, 4735, 5451, 5925, 8625, 9085, 9875, 14205, 21781, 23675, 27255, 29625, 45425, 65343, 71025, 74813, 108905, 118375, 136275, 224439, 227125, 326715, 355125, 374065, 544525, 681375, 1122195, 1633575, 1720699, 1870325, 2722625, 5162097, 5610975, 8167875, 8603495, 9351625, 25810485, 28054875, 43017475, 129052425, 215087375, 645262125]

約数ペア:

[(1, 645262125), (3, 215087375), (5, 129052425), (15, 43017475), (23, 28054875), (25, 25810485), (69, 9351625), (75, 8603495), (79, 8167875), (115, 5610975), (125, 5162097), (237, 2722625), (345, 1870325), (375, 1720699), (395, 1633575), (575, 1122195), (947, 681375), (1185, 544525), (1725, 374065), (1817, 355125), (1975, 326715), (2841, 227125), (2875, 224439), (4735, 136275), (5451, 118375), (5925, 108905), (8625, 74813), (9085, 71025), (9875, 65343), (14205, 45425), (21781, 29625), (23675, 27255)]