285110440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{100391}}^1$

素因数の和:100473

約数の個数: 32

約数和(自身を含む): 650540160

約数和(自身を除く): 365429720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 100391, 200782, 401564, 501955, 803128, 1003910, 2007820, 4015640, 7127761, 14255522, 28511044, 35638805, 57022088, 71277610, 142555220, 285110440]

約数ペア:

[(1, 285110440), (2, 142555220), (4, 71277610), (5, 57022088), (8, 35638805), (10, 28511044), (20, 14255522), (40, 7127761), (71, 4015640), (142, 2007820), (284, 1003910), (355, 803128), (568, 501955), (710, 401564), (1420, 200782), (2840, 100391)]