18892140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{499}}^1\times {\mathrm{631}}^1$

素因数の和:1142

約数の個数: 48

約数和(自身を含む): 53088000

約数和(自身を除く): 34195860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 499, 631, 998, 1262, 1497, 1893, 1996, 2495, 2524, 2994, 3155, 3786, 4990, 5988, 6310, 7485, 7572, 9465, 9980, 12620, 14970, 18930, 29940, 37860, 314869, 629738, 944607, 1259476, 1574345, 1889214, 3148690, 3778428, 4723035, 6297380, 9446070, 18892140]

約数ペア:

[(1, 18892140), (2, 9446070), (3, 6297380), (4, 4723035), (5, 3778428), (6, 3148690), (10, 1889214), (12, 1574345), (15, 1259476), (20, 944607), (30, 629738), (60, 314869), (499, 37860), (631, 29940), (998, 18930), (1262, 14970), (1497, 12620), (1893, 9980), (1996, 9465), (2495, 7572), (2524, 7485), (2994, 6310), (3155, 5988), (3786, 4990)]