156738125

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:303

約数の個数: 40

約数和(自身を含む): 210307680

約数和(自身を除く): 53569555

約数列:

[1, 5, 19, 25, 67, 95, 125, 197, 335, 475, 625, 985, 1273, 1675, 2375, 3743, 4925, 6365, 8375, 11875, 13199, 18715, 24625, 31825, 41875, 65995, 93575, 123125, 159125, 250781, 329975, 467875, 795625, 1253905, 1649875, 2339375, 6269525, 8249375, 31347625, 156738125]

約数ペア:

[(1, 156738125), (5, 31347625), (19, 8249375), (25, 6269525), (67, 2339375), (95, 1649875), (125, 1253905), (197, 795625), (335, 467875), (475, 329975), (625, 250781), (985, 159125), (1273, 123125), (1675, 93575), (2375, 65995), (3743, 41875), (4925, 31825), (6365, 24625), (8375, 18715), (11875, 13199)]