20123090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8147}}^1$

素因数の和:8186

約数の個数: 32

約数和(自身を含む): 41065920

約数和(自身を除く): 20942830

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8147, 16294, 40735, 81470, 105911, 154793, 211822, 309586, 529555, 773965, 1059110, 1547930, 2012309, 4024618, 10061545, 20123090]

約数ペア:

[(1, 20123090), (2, 10061545), (5, 4024618), (10, 2012309), (13, 1547930), (19, 1059110), (26, 773965), (38, 529555), (65, 309586), (95, 211822), (130, 154793), (190, 105911), (247, 81470), (494, 40735), (1235, 16294), (2470, 8147)]