217291860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{1747}}^1$

素因数の和:2453

約数の個数: 72

約数和(自身を含む): 660450336

約数和(自身を除く): 443158476

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 691, 1382, 1747, 2073, 2764, 3455, 3494, 4146, 5241, 6219, 6910, 6988, 8292, 8735, 10365, 10482, 12438, 13820, 15723, 17470, 20730, 20964, 24876, 26205, 31095, 31446, 34940, 41460, 52410, 62190, 62892, 78615, 104820, 124380, 157230, 314460, 1207177, 2414354, 3621531, 4828708, 6035885, 7243062, 10864593, 12071770, 14486124, 18107655, 21729186, 24143540, 36215310, 43458372, 54322965, 72430620, 108645930, 217291860]

約数ペア:

[(1, 217291860), (2, 108645930), (3, 72430620), (4, 54322965), (5, 43458372), (6, 36215310), (9, 24143540), (10, 21729186), (12, 18107655), (15, 14486124), (18, 12071770), (20, 10864593), (30, 7243062), (36, 6035885), (45, 4828708), (60, 3621531), (90, 2414354), (180, 1207177), (691, 314460), (1382, 157230), (1747, 124380), (2073, 104820), (2764, 78615), (3455, 62892), (3494, 62190), (4146, 52410), (5241, 41460), (6219, 34940), (6910, 31446), (6988, 31095), (8292, 26205), (8735, 24876), (10365, 20964), (10482, 20730), (12438, 17470), (13820, 15723)]