30411875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:249

約数の個数: 40

約数和(自身を含む): 43298640

約数和(自身を除く): 12886765

約数列:

[1, 5, 13, 19, 25, 65, 95, 125, 197, 247, 325, 475, 625, 985, 1235, 1625, 2375, 2561, 3743, 4925, 6175, 8125, 11875, 12805, 18715, 24625, 30875, 48659, 64025, 93575, 123125, 154375, 243295, 320125, 467875, 1216475, 1600625, 2339375, 6082375, 30411875]

約数ペア:

[(1, 30411875), (5, 6082375), (13, 2339375), (19, 1600625), (25, 1216475), (65, 467875), (95, 320125), (125, 243295), (197, 154375), (247, 123125), (325, 93575), (475, 64025), (625, 48659), (985, 30875), (1235, 24625), (1625, 18715), (2375, 12805), (2561, 11875), (3743, 8125), (4925, 6175)]