81924375

素因数分解:

$3^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{3361}}^1$

素因数の和:3397

約数の個数: 40

約数和(自身を含む): 147040432

約数和(自身を除く): 65116057

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 125, 195, 325, 375, 625, 975, 1625, 1875, 3361, 4875, 8125, 10083, 16805, 24375, 43693, 50415, 84025, 131079, 218465, 252075, 420125, 655395, 1092325, 1260375, 2100625, 3276975, 5461625, 6301875, 16384875, 27308125, 81924375]

約数ペア:

[(1, 81924375), (3, 27308125), (5, 16384875), (13, 6301875), (15, 5461625), (25, 3276975), (39, 2100625), (65, 1260375), (75, 1092325), (125, 655395), (195, 420125), (325, 252075), (375, 218465), (625, 131079), (975, 84025), (1625, 50415), (1875, 43693), (3361, 24375), (4875, 16805), (8125, 10083)]