20571661535

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{821}}^1\times {\mathrm{1163}}^1$

素因数の和:2159

約数の個数: 32

約数和(自身を含む): 25718999040

約数和(自身を除く): 5147337505

約数列:

[1, 5, 31, 139, 155, 695, 821, 1163, 4105, 4309, 5815, 21545, 25451, 36053, 114119, 127255, 161657, 180265, 570595, 808285, 954823, 3537689, 4774115, 5011367, 17688445, 25056835, 29599513, 132720397, 147997565, 663601985, 4114332307, 20571661535]

約数ペア:

[(1, 20571661535), (5, 4114332307), (31, 663601985), (139, 147997565), (155, 132720397), (695, 29599513), (821, 25056835), (1163, 17688445), (4105, 5011367), (4309, 4774115), (5815, 3537689), (21545, 954823), (25451, 808285), (36053, 570595), (114119, 180265), (127255, 161657)]