20121745815

素因数分解:

$3^4\times 5^1\times {\mathrm{3571}}^1\times {\mathrm{13913}}^1$

素因数の和:17501

約数の個数: 40

約数和(自身を含む): 36082786608

約数和(自身を除く): 15961040793

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 3571, 10713, 13913, 17855, 32139, 41739, 53565, 69565, 96417, 125217, 160695, 208695, 289251, 375651, 482085, 626085, 1126953, 1446255, 1878255, 5634765, 49683323, 149049969, 248416615, 447149907, 745249845, 1341449721, 2235749535, 4024349163, 6707248605, 20121745815]

約数ペア:

[(1, 20121745815), (3, 6707248605), (5, 4024349163), (9, 2235749535), (15, 1341449721), (27, 745249845), (45, 447149907), (81, 248416615), (135, 149049969), (405, 49683323), (3571, 5634765), (10713, 1878255), (13913, 1446255), (17855, 1126953), (32139, 626085), (41739, 482085), (53565, 375651), (69565, 289251), (96417, 208695), (125217, 160695)]