20020748825

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10400389}}^1$

素因数の和:10400417

約数の個数: 24

約数和(自身を含む): 30951560640

約数和(自身を除く): 10930811815

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 175, 275, 385, 1925, 10400389, 52001945, 72802723, 114404279, 260009725, 364013615, 572021395, 800829953, 1820068075, 2860106975, 4004149765, 20020748825]

約数ペア:

[(1, 20020748825), (5, 4004149765), (7, 2860106975), (11, 1820068075), (25, 800829953), (35, 572021395), (55, 364013615), (77, 260009725), (175, 114404279), (275, 72802723), (385, 52001945), (1925, 10400389)]