18519140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{317}}^1$

素因数の和:476

約数の個数: 48

約数和(自身を含む): 41029632

約数和(自身を除く): 22510492

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 127, 230, 254, 317, 460, 508, 634, 635, 1268, 1270, 1585, 2540, 2921, 3170, 5842, 6340, 7291, 11684, 14582, 14605, 29164, 29210, 36455, 40259, 58420, 72910, 80518, 145820, 161036, 201295, 402590, 805180, 925957, 1851914, 3703828, 4629785, 9259570, 18519140]

約数ペア:

[(1, 18519140), (2, 9259570), (4, 4629785), (5, 3703828), (10, 1851914), (20, 925957), (23, 805180), (46, 402590), (92, 201295), (115, 161036), (127, 145820), (230, 80518), (254, 72910), (317, 58420), (460, 40259), (508, 36455), (634, 29210), (635, 29164), (1268, 14605), (1270, 14582), (1585, 11684), (2540, 7291), (2921, 6340), (3170, 5842)]