20474320

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6917}}^1$

素因数の和:6967

約数の個数: 40

約数和(自身を含む): 48896424

約数和(自身を除く): 28422104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 6917, 13834, 27668, 34585, 55336, 69170, 110672, 138340, 255929, 276680, 511858, 553360, 1023716, 1279645, 2047432, 2559290, 4094864, 5118580, 10237160, 20474320]

約数ペア:

[(1, 20474320), (2, 10237160), (4, 5118580), (5, 4094864), (8, 2559290), (10, 2047432), (16, 1279645), (20, 1023716), (37, 553360), (40, 511858), (74, 276680), (80, 255929), (148, 138340), (185, 110672), (296, 69170), (370, 55336), (592, 34585), (740, 27668), (1480, 13834), (2960, 6917)]