20007262460

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1\times {\mathrm{63689}}^1$

素因数の和:63950

約数の個数: 48

約数和(自身を含む): 42692680800

約数和(自身を除く): 22685418340

約数列:

[1, 2, 4, 5, 10, 20, 113, 139, 226, 278, 452, 556, 565, 695, 1130, 1390, 2260, 2780, 15707, 31414, 62828, 63689, 78535, 127378, 157070, 254756, 314140, 318445, 636890, 1273780, 7196857, 8852771, 14393714, 17705542, 28787428, 35411084, 35984285, 44263855, 71968570, 88527710, 143937140, 177055420, 1000363123, 2000726246, 4001452492, 5001815615, 10003631230, 20007262460]

約数ペア:

[(1, 20007262460), (2, 10003631230), (4, 5001815615), (5, 4001452492), (10, 2000726246), (20, 1000363123), (113, 177055420), (139, 143937140), (226, 88527710), (278, 71968570), (452, 44263855), (556, 35984285), (565, 35411084), (695, 28787428), (1130, 17705542), (1390, 14393714), (2260, 8852771), (2780, 7196857), (15707, 1273780), (31414, 636890), (62828, 318445), (63689, 314140), (78535, 254756), (127378, 157070)]