15624375

素因数分解:

$3^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{641}}^1$

素因数の和:677

約数の個数: 40

約数和(自身を含む): 28078512

約数和(自身を除く): 12454137

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 125, 195, 325, 375, 625, 641, 975, 1625, 1875, 1923, 3205, 4875, 8125, 8333, 9615, 16025, 24375, 24999, 41665, 48075, 80125, 124995, 208325, 240375, 400625, 624975, 1041625, 1201875, 3124875, 5208125, 15624375]

約数ペア:

[(1, 15624375), (3, 5208125), (5, 3124875), (13, 1201875), (15, 1041625), (25, 624975), (39, 400625), (65, 240375), (75, 208325), (125, 124995), (195, 80125), (325, 48075), (375, 41665), (625, 24999), (641, 24375), (975, 16025), (1625, 9615), (1875, 8333), (1923, 8125), (3205, 4875)]