643140

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{397}}^1$

素因数の和:418

約数の個数: 60

約数和(自身を含む): 2022636

約数和(自身を除く): 1379496

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 397, 405, 540, 794, 810, 1191, 1588, 1620, 1985, 2382, 3573, 3970, 4764, 5955, 7146, 7940, 10719, 11910, 14292, 17865, 21438, 23820, 32157, 35730, 42876, 53595, 64314, 71460, 107190, 128628, 160785, 214380, 321570, 643140]

約数ペア:

[(1, 643140), (2, 321570), (3, 214380), (4, 160785), (5, 128628), (6, 107190), (9, 71460), (10, 64314), (12, 53595), (15, 42876), (18, 35730), (20, 32157), (27, 23820), (30, 21438), (36, 17865), (45, 14292), (54, 11910), (60, 10719), (81, 7940), (90, 7146), (108, 5955), (135, 4764), (162, 3970), (180, 3573), (270, 2382), (324, 1985), (397, 1620), (405, 1588), (540, 1191), (794, 810)]