20397660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4657}}^1$

素因数の和:4742

約数の個数: 48

約数和(自身を含む): 57908256

約数和(自身を除く): 37510596

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 73, 146, 219, 292, 365, 438, 730, 876, 1095, 1460, 2190, 4380, 4657, 9314, 13971, 18628, 23285, 27942, 46570, 55884, 69855, 93140, 139710, 279420, 339961, 679922, 1019883, 1359844, 1699805, 2039766, 3399610, 4079532, 5099415, 6799220, 10198830, 20397660]

約数ペア:

[(1, 20397660), (2, 10198830), (3, 6799220), (4, 5099415), (5, 4079532), (6, 3399610), (10, 2039766), (12, 1699805), (15, 1359844), (20, 1019883), (30, 679922), (60, 339961), (73, 279420), (146, 139710), (219, 93140), (292, 69855), (365, 55884), (438, 46570), (730, 27942), (876, 23285), (1095, 18628), (1460, 13971), (2190, 9314), (4380, 4657)]