267286280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{155399}}^1$

素因数の和:155453

約数の個数: 32

約数和(自身を含む): 615384000

約数和(自身を除く): 348097720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 155399, 310798, 621596, 776995, 1243192, 1553990, 3107980, 6215960, 6682157, 13364314, 26728628, 33410785, 53457256, 66821570, 133643140, 267286280]

約数ペア:

[(1, 267286280), (2, 133643140), (4, 66821570), (5, 53457256), (8, 33410785), (10, 26728628), (20, 13364314), (40, 6682157), (43, 6215960), (86, 3107980), (172, 1553990), (215, 1243192), (344, 776995), (430, 621596), (860, 310798), (1720, 155399)]