20643650

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{619}}^1$

素因数の和:683

約数の個数: 48

約数和(自身を含む): 41515200

約数和(自身を除く): 20871550

約数列:

[1, 2, 5, 10, 23, 25, 29, 46, 50, 58, 115, 145, 230, 290, 575, 619, 667, 725, 1150, 1238, 1334, 1450, 3095, 3335, 6190, 6670, 14237, 15475, 16675, 17951, 28474, 30950, 33350, 35902, 71185, 89755, 142370, 179510, 355925, 412873, 448775, 711850, 825746, 897550, 2064365, 4128730, 10321825, 20643650]

約数ペア:

[(1, 20643650), (2, 10321825), (5, 4128730), (10, 2064365), (23, 897550), (25, 825746), (29, 711850), (46, 448775), (50, 412873), (58, 355925), (115, 179510), (145, 142370), (230, 89755), (290, 71185), (575, 35902), (619, 33350), (667, 30950), (725, 28474), (1150, 17951), (1238, 16675), (1334, 15475), (1450, 14237), (3095, 6670), (3335, 6190)]