18631716340

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{457}}^1\times {\mathrm{28711}}^1$

素因数の和:29248

約数の個数: 48

約数和(自身を含む): 39765890304

約数和(自身を除く): 21134173964

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 457, 710, 914, 1420, 1828, 2285, 4570, 9140, 28711, 32447, 57422, 64894, 114844, 129788, 143555, 162235, 287110, 324470, 574220, 648940, 2038481, 4076962, 8153924, 10192405, 13120927, 20384810, 26241854, 40769620, 52483708, 65604635, 131209270, 262418540, 931585817, 1863171634, 3726343268, 4657929085, 9315858170, 18631716340]

約数ペア:

[(1, 18631716340), (2, 9315858170), (4, 4657929085), (5, 3726343268), (10, 1863171634), (20, 931585817), (71, 262418540), (142, 131209270), (284, 65604635), (355, 52483708), (457, 40769620), (710, 26241854), (914, 20384810), (1420, 13120927), (1828, 10192405), (2285, 8153924), (4570, 4076962), (9140, 2038481), (28711, 648940), (32447, 574220), (57422, 324470), (64894, 287110), (114844, 162235), (129788, 143555)]