138889785

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1\times {\mathrm{617}}^1$

素因数の和:1017

約数の個数: 32

約数和(自身を含む): 228412800

約数和(自身を除く): 89523015

約数列:

[1, 3, 5, 15, 43, 129, 215, 349, 617, 645, 1047, 1745, 1851, 3085, 5235, 9255, 15007, 26531, 45021, 75035, 79593, 132655, 215333, 225105, 397965, 645999, 1076665, 3229995, 9259319, 27777957, 46296595, 138889785]

約数ペア:

[(1, 138889785), (3, 46296595), (5, 27777957), (15, 9259319), (43, 3229995), (129, 1076665), (215, 645999), (349, 397965), (617, 225105), (645, 215333), (1047, 132655), (1745, 79593), (1851, 75035), (3085, 45021), (5235, 26531), (9255, 15007)]