38790940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{421}}^1$

素因数の和:718

約数の個数: 48

約数和(自身を含む): 86776704

約数和(自身を除く): 47985764

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 271, 340, 421, 542, 842, 1084, 1355, 1684, 2105, 2710, 4210, 4607, 5420, 7157, 8420, 9214, 14314, 18428, 23035, 28628, 35785, 46070, 71570, 92140, 114091, 143140, 228182, 456364, 570455, 1140910, 1939547, 2281820, 3879094, 7758188, 9697735, 19395470, 38790940]

約数ペア:

[(1, 38790940), (2, 19395470), (4, 9697735), (5, 7758188), (10, 3879094), (17, 2281820), (20, 1939547), (34, 1140910), (68, 570455), (85, 456364), (170, 228182), (271, 143140), (340, 114091), (421, 92140), (542, 71570), (842, 46070), (1084, 35785), (1355, 28628), (1684, 23035), (2105, 18428), (2710, 14314), (4210, 9214), (4607, 8420), (5420, 7157)]