978343600

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{188143}}^1$

素因数の和:188174

約数の個数: 60

約数和(自身を含む): 2531289376

約数和(自身を除く): 1552945776

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 188143, 376286, 752572, 940715, 1505144, 1881430, 2445859, 3010288, 3762860, 4703575, 4891718, 7525720, 9407150, 9783436, 12229295, 15051440, 18814300, 19566872, 24458590, 37628600, 39133744, 48917180, 61146475, 75257200, 97834360, 122292950, 195668720, 244585900, 489171800, 978343600]

約数ペア:

[(1, 978343600), (2, 489171800), (4, 244585900), (5, 195668720), (8, 122292950), (10, 97834360), (13, 75257200), (16, 61146475), (20, 48917180), (25, 39133744), (26, 37628600), (40, 24458590), (50, 19566872), (52, 18814300), (65, 15051440), (80, 12229295), (100, 9783436), (104, 9407150), (130, 7525720), (200, 4891718), (208, 4703575), (260, 3762860), (325, 3010288), (400, 2445859), (520, 1881430), (650, 1505144), (1040, 940715), (1300, 752572), (2600, 376286), (5200, 188143)]