30996875

素因数分解:

$5^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 48121920

約数和(自身を除く): 17125045

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 109, 125, 175, 325, 455, 545, 625, 763, 875, 1417, 1625, 2275, 2725, 3125, 3815, 4375, 7085, 8125, 9919, 11375, 13625, 19075, 21875, 35425, 40625, 49595, 56875, 68125, 95375, 177125, 247975, 284375, 340625, 476875, 885625, 1239875, 2384375, 4428125, 6199375, 30996875]

約数ペア:

[(1, 30996875), (5, 6199375), (7, 4428125), (13, 2384375), (25, 1239875), (35, 885625), (65, 476875), (91, 340625), (109, 284375), (125, 247975), (175, 177125), (325, 95375), (455, 68125), (545, 56875), (625, 49595), (763, 40625), (875, 35425), (1417, 21875), (1625, 19075), (2275, 13625), (2725, 11375), (3125, 9919), (3815, 8125), (4375, 7085)]