18679990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{4523}}^1$

素因数の和:4596

約数の個数: 32

約数和(自身を含む): 39087360

約数和(自身を除く): 20407370

約数列:

[1, 2, 5, 7, 10, 14, 35, 59, 70, 118, 295, 413, 590, 826, 2065, 4130, 4523, 9046, 22615, 31661, 45230, 63322, 158305, 266857, 316610, 533714, 1334285, 1867999, 2668570, 3735998, 9339995, 18679990]

約数ペア:

[(1, 18679990), (2, 9339995), (5, 3735998), (7, 2668570), (10, 1867999), (14, 1334285), (35, 533714), (59, 316610), (70, 266857), (118, 158305), (295, 63322), (413, 45230), (590, 31661), (826, 22615), (2065, 9046), (4130, 4523)]