18552940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1489}}^1$

素因数の和:1594

約数の個数: 48

約数和(自身を含む): 45057600

約数和(自身を除く): 26504660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1489, 1780, 2492, 2978, 3115, 5956, 6230, 7445, 10423, 12460, 14890, 20846, 29780, 41692, 52115, 104230, 132521, 208460, 265042, 530084, 662605, 927647, 1325210, 1855294, 2650420, 3710588, 4638235, 9276470, 18552940]

約数ペア:

[(1, 18552940), (2, 9276470), (4, 4638235), (5, 3710588), (7, 2650420), (10, 1855294), (14, 1325210), (20, 927647), (28, 662605), (35, 530084), (70, 265042), (89, 208460), (140, 132521), (178, 104230), (356, 52115), (445, 41692), (623, 29780), (890, 20846), (1246, 14890), (1489, 12460), (1780, 10423), (2492, 7445), (2978, 6230), (3115, 5956)]