51336920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1361}}^1$

素因数の和:1436

約数の個数: 64

約数和(自身を含む): 123560640

約数和(自身を除く): 72223720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 41, 46, 82, 92, 115, 164, 184, 205, 230, 328, 410, 460, 820, 920, 943, 1361, 1640, 1886, 2722, 3772, 4715, 5444, 6805, 7544, 9430, 10888, 13610, 18860, 27220, 31303, 37720, 54440, 55801, 62606, 111602, 125212, 156515, 223204, 250424, 279005, 313030, 446408, 558010, 626060, 1116020, 1252120, 1283423, 2232040, 2566846, 5133692, 6417115, 10267384, 12834230, 25668460, 51336920]

約数ペア:

[(1, 51336920), (2, 25668460), (4, 12834230), (5, 10267384), (8, 6417115), (10, 5133692), (20, 2566846), (23, 2232040), (40, 1283423), (41, 1252120), (46, 1116020), (82, 626060), (92, 558010), (115, 446408), (164, 313030), (184, 279005), (205, 250424), (230, 223204), (328, 156515), (410, 125212), (460, 111602), (820, 62606), (920, 55801), (943, 54440), (1361, 37720), (1640, 31303), (1886, 27220), (2722, 18860), (3772, 13610), (4715, 10888), (5444, 9430), (6805, 7544)]