281134520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{305581}}^1$

素因数の和:305615

約数の個数: 32

約数和(自身を含む): 660057120

約数和(自身を除く): 378922600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 305581, 611162, 1222324, 1527905, 2444648, 3055810, 6111620, 7028363, 12223240, 14056726, 28113452, 35141815, 56226904, 70283630, 140567260, 281134520]

約数ペア:

[(1, 281134520), (2, 140567260), (4, 70283630), (5, 56226904), (8, 35141815), (10, 28113452), (20, 14056726), (23, 12223240), (40, 7028363), (46, 6111620), (92, 3055810), (115, 2444648), (184, 1527905), (230, 1222324), (460, 611162), (920, 305581)]