279491120

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{26669}}^1$

素因数の和:26813

約数の個数: 40

約数和(自身を含む): 654801840

約数和(自身を除く): 375310720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 5240, 10480, 26669, 53338, 106676, 133345, 213352, 266690, 426704, 533380, 1066760, 2133520, 3493639, 6987278, 13974556, 17468195, 27949112, 34936390, 55898224, 69872780, 139745560, 279491120]

約数ペア:

[(1, 279491120), (2, 139745560), (4, 69872780), (5, 55898224), (8, 34936390), (10, 27949112), (16, 17468195), (20, 13974556), (40, 6987278), (80, 3493639), (131, 2133520), (262, 1066760), (524, 533380), (655, 426704), (1048, 266690), (1310, 213352), (2096, 133345), (2620, 106676), (5240, 53338), (10480, 26669)]