51858125

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1$

素因数の和:447

約数の個数: 40

約数和(自身を含む): 74601120

約数和(自身を除く): 22742995

約数列:

[1, 5, 11, 19, 25, 55, 95, 125, 209, 275, 397, 475, 625, 1045, 1375, 1985, 2375, 4367, 5225, 6875, 7543, 9925, 11875, 21835, 26125, 37715, 49625, 82973, 109175, 130625, 188575, 248125, 414865, 545875, 942875, 2074325, 2729375, 4714375, 10371625, 51858125]

約数ペア:

[(1, 51858125), (5, 10371625), (11, 4714375), (19, 2729375), (25, 2074325), (55, 942875), (95, 545875), (125, 414865), (209, 248125), (275, 188575), (397, 130625), (475, 109175), (625, 82973), (1045, 49625), (1375, 37715), (1985, 26125), (2375, 21835), (4367, 11875), (5225, 9925), (6875, 7543)]