18739900

素因数分解:

$2^2\times 5^2\times {\mathrm{67}}^1\times {\mathrm{2797}}^1$

素因数の和:2878

約数の個数: 36

約数和(自身を含む): 41287288

約数和(自身を除く): 22547388

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 67, 100, 134, 268, 335, 670, 1340, 1675, 2797, 3350, 5594, 6700, 11188, 13985, 27970, 55940, 69925, 139850, 187399, 279700, 374798, 749596, 936995, 1873990, 3747980, 4684975, 9369950, 18739900]

約数ペア:

[(1, 18739900), (2, 9369950), (4, 4684975), (5, 3747980), (10, 1873990), (20, 936995), (25, 749596), (50, 374798), (67, 279700), (100, 187399), (134, 139850), (268, 69925), (335, 55940), (670, 27970), (1340, 13985), (1675, 11188), (2797, 6700), (3350, 5594)]