20105444779

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^2\times {\mathrm{149}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 24682752000

約数和(自身を除く): 4577307221

約数列:

[1, 7, 23, 79, 103, 149, 161, 553, 721, 1043, 1817, 2369, 3427, 8137, 10609, 11771, 12719, 15347, 16583, 23989, 56959, 74263, 82397, 107429, 187151, 244007, 270733, 352981, 838111, 1212413, 1310057, 1580741, 1708049, 1895131, 2470867, 5866777, 8486891, 11065187, 19276553, 27885499, 36357043, 124878539, 134935871, 195198493, 254499301, 874149773, 2872206397, 20105444779]

約数ペア:

[(1, 20105444779), (7, 2872206397), (23, 874149773), (79, 254499301), (103, 195198493), (149, 134935871), (161, 124878539), (553, 36357043), (721, 27885499), (1043, 19276553), (1817, 11065187), (2369, 8486891), (3427, 5866777), (8137, 2470867), (10609, 1895131), (11771, 1708049), (12719, 1580741), (15347, 1310057), (16583, 1212413), (23989, 838111), (56959, 352981), (74263, 270733), (82397, 244007), (107429, 187151)]