31594940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{887}}^1$

素因数の和:1046

約数の個数: 48

約数和(自身を含む): 72055872

約数和(自身を除く): 40460932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 137, 260, 274, 548, 685, 887, 1370, 1774, 1781, 2740, 3548, 3562, 4435, 7124, 8870, 8905, 11531, 17740, 17810, 23062, 35620, 46124, 57655, 115310, 121519, 230620, 243038, 486076, 607595, 1215190, 1579747, 2430380, 3159494, 6318988, 7898735, 15797470, 31594940]

約数ペア:

[(1, 31594940), (2, 15797470), (4, 7898735), (5, 6318988), (10, 3159494), (13, 2430380), (20, 1579747), (26, 1215190), (52, 607595), (65, 486076), (130, 243038), (137, 230620), (260, 121519), (274, 115310), (548, 57655), (685, 46124), (887, 35620), (1370, 23062), (1774, 17810), (1781, 17740), (2740, 11531), (3548, 8905), (3562, 8870), (4435, 7124)]