212444080

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61757}}^1$

素因数の和:61813

約数の個数: 40

約数和(自身を含む): 505427472

約数和(自身を除く): 292983392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 61757, 123514, 247028, 308785, 494056, 617570, 988112, 1235140, 2470280, 2655551, 4940560, 5311102, 10622204, 13277755, 21244408, 26555510, 42488816, 53111020, 106222040, 212444080]

約数ペア:

[(1, 212444080), (2, 106222040), (4, 53111020), (5, 42488816), (8, 26555510), (10, 21244408), (16, 13277755), (20, 10622204), (40, 5311102), (43, 4940560), (80, 2655551), (86, 2470280), (172, 1235140), (215, 988112), (344, 617570), (430, 494056), (688, 308785), (860, 247028), (1720, 123514), (3440, 61757)]