81519100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{859}}^1$

素因数の和:959

約数の個数: 72

約数和(自身を含む): 193338320

約数和(自身を除く): 111819220

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 73, 100, 130, 146, 260, 292, 325, 365, 650, 730, 859, 949, 1300, 1460, 1718, 1825, 1898, 3436, 3650, 3796, 4295, 4745, 7300, 8590, 9490, 11167, 17180, 18980, 21475, 22334, 23725, 42950, 44668, 47450, 55835, 62707, 85900, 94900, 111670, 125414, 223340, 250828, 279175, 313535, 558350, 627070, 815191, 1116700, 1254140, 1567675, 1630382, 3135350, 3260764, 4075955, 6270700, 8151910, 16303820, 20379775, 40759550, 81519100]

約数ペア:

[(1, 81519100), (2, 40759550), (4, 20379775), (5, 16303820), (10, 8151910), (13, 6270700), (20, 4075955), (25, 3260764), (26, 3135350), (50, 1630382), (52, 1567675), (65, 1254140), (73, 1116700), (100, 815191), (130, 627070), (146, 558350), (260, 313535), (292, 279175), (325, 250828), (365, 223340), (650, 125414), (730, 111670), (859, 94900), (949, 85900), (1300, 62707), (1460, 55835), (1718, 47450), (1825, 44668), (1898, 42950), (3436, 23725), (3650, 22334), (3796, 21475), (4295, 18980), (4745, 17180), (7300, 11167), (8590, 9490)]