18824780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4259}}^1$

素因数の和:4298

約数の個数: 48

約数和(自身を含む): 45087840

約数和(自身を除く): 26263060

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4259, 4420, 8518, 17036, 21295, 42590, 55367, 72403, 85180, 110734, 144806, 221468, 276835, 289612, 362015, 553670, 724030, 941239, 1107340, 1448060, 1882478, 3764956, 4706195, 9412390, 18824780]

約数ペア:

[(1, 18824780), (2, 9412390), (4, 4706195), (5, 3764956), (10, 1882478), (13, 1448060), (17, 1107340), (20, 941239), (26, 724030), (34, 553670), (52, 362015), (65, 289612), (68, 276835), (85, 221468), (130, 144806), (170, 110734), (221, 85180), (260, 72403), (340, 55367), (442, 42590), (884, 21295), (1105, 17036), (2210, 8518), (4259, 4420)]