31148125

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:143

約数の個数: 40

約数和(自身を含む): 42611360

約数和(自身を除く): 11463235

約数列:

[1, 5, 19, 25, 43, 61, 95, 125, 215, 305, 475, 625, 817, 1075, 1159, 1525, 2375, 2623, 4085, 5375, 5795, 7625, 11875, 13115, 20425, 26875, 28975, 38125, 49837, 65575, 102125, 144875, 249185, 327875, 510625, 724375, 1245925, 1639375, 6229625, 31148125]

約数ペア:

[(1, 31148125), (5, 6229625), (19, 1639375), (25, 1245925), (43, 724375), (61, 510625), (95, 327875), (125, 249185), (215, 144875), (305, 102125), (475, 65575), (625, 49837), (817, 38125), (1075, 28975), (1159, 26875), (1525, 20425), (2375, 13115), (2623, 11875), (4085, 7625), (5375, 5795)]