31309995

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{167}}^1\times {\mathrm{431}}^1$

素因数の和:635

約数の個数: 32

約数和(自身を含む): 52254720

約数和(自身を除く): 20944725

約数列:

[1, 3, 5, 15, 29, 87, 145, 167, 431, 435, 501, 835, 1293, 2155, 2505, 4843, 6465, 12499, 14529, 24215, 37497, 62495, 71977, 72645, 187485, 215931, 359885, 1079655, 2087333, 6261999, 10436665, 31309995]

約数ペア:

[(1, 31309995), (3, 10436665), (5, 6261999), (15, 2087333), (29, 1079655), (87, 359885), (145, 215931), (167, 187485), (431, 72645), (435, 71977), (501, 62495), (835, 37497), (1293, 24215), (2155, 14529), (2505, 12499), (4843, 6465)]