18134740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3671}}^1$

素因数の和:3712

約数の個数: 48

約数和(自身を含む): 43182720

約数和(自身を除く): 25047980

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 3671, 4940, 7342, 14684, 18355, 36710, 47723, 69749, 73420, 95446, 139498, 190892, 238615, 278996, 348745, 477230, 697490, 906737, 954460, 1394980, 1813474, 3626948, 4533685, 9067370, 18134740]

約数ペア:

[(1, 18134740), (2, 9067370), (4, 4533685), (5, 3626948), (10, 1813474), (13, 1394980), (19, 954460), (20, 906737), (26, 697490), (38, 477230), (52, 348745), (65, 278996), (76, 238615), (95, 190892), (130, 139498), (190, 95446), (247, 73420), (260, 69749), (380, 47723), (494, 36710), (988, 18355), (1235, 14684), (2470, 7342), (3671, 4940)]