18681130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 39191040

約数和(自身を除く): 20509910

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 79, 85, 107, 130, 158, 170, 214, 221, 395, 442, 535, 790, 1027, 1070, 1105, 1343, 1391, 1819, 2054, 2210, 2686, 2782, 3638, 5135, 6715, 6955, 8453, 9095, 10270, 13430, 13910, 16906, 17459, 18190, 23647, 34918, 42265, 47294, 84530, 87295, 109889, 118235, 143701, 174590, 219778, 236470, 287402, 549445, 718505, 1098890, 1437010, 1868113, 3736226, 9340565, 18681130]

約数ペア:

[(1, 18681130), (2, 9340565), (5, 3736226), (10, 1868113), (13, 1437010), (17, 1098890), (26, 718505), (34, 549445), (65, 287402), (79, 236470), (85, 219778), (107, 174590), (130, 143701), (158, 118235), (170, 109889), (214, 87295), (221, 84530), (395, 47294), (442, 42265), (535, 34918), (790, 23647), (1027, 18190), (1070, 17459), (1105, 16906), (1343, 13910), (1391, 13430), (1819, 10270), (2054, 9095), (2210, 8453), (2686, 6955), (2782, 6715), (3638, 5135)]