127660840

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{569}}^1$

素因数の和:730

約数の個数: 64

約数和(自身を含む): 295488000

約数和(自身を除く): 167827160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 79, 142, 158, 284, 316, 355, 395, 568, 569, 632, 710, 790, 1138, 1420, 1580, 2276, 2840, 2845, 3160, 4552, 5609, 5690, 11218, 11380, 22436, 22760, 28045, 40399, 44872, 44951, 56090, 80798, 89902, 112180, 161596, 179804, 201995, 224360, 224755, 323192, 359608, 403990, 449510, 807980, 899020, 1615960, 1798040, 3191521, 6383042, 12766084, 15957605, 25532168, 31915210, 63830420, 127660840]

約数ペア:

[(1, 127660840), (2, 63830420), (4, 31915210), (5, 25532168), (8, 15957605), (10, 12766084), (20, 6383042), (40, 3191521), (71, 1798040), (79, 1615960), (142, 899020), (158, 807980), (284, 449510), (316, 403990), (355, 359608), (395, 323192), (568, 224755), (569, 224360), (632, 201995), (710, 179804), (790, 161596), (1138, 112180), (1420, 89902), (1580, 80798), (2276, 56090), (2840, 44951), (2845, 44872), (3160, 40399), (4552, 28045), (5609, 22760), (5690, 22436), (11218, 11380)]