251013290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{18859}}^1$

素因数の和:18899

約数の個数: 32

約数和(自身を含む): 496998720

約数和(自身を除く): 245985430

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 1331, 2662, 6655, 13310, 18859, 37718, 94295, 188590, 207449, 414898, 1037245, 2074490, 2281939, 4563878, 11409695, 22819390, 25101329, 50202658, 125506645, 251013290]

約数ペア:

[(1, 251013290), (2, 125506645), (5, 50202658), (10, 25101329), (11, 22819390), (22, 11409695), (55, 4563878), (110, 2281939), (121, 2074490), (242, 1037245), (605, 414898), (1210, 207449), (1331, 188590), (2662, 94295), (6655, 37718), (13310, 18859)]