72057920

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1861}}^1$

素因数の和:1900

約数の個数: 84

約数和(自身を含む): 188706252

約数和(自身を除く): 116648332

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 121, 160, 176, 220, 242, 320, 352, 440, 484, 605, 704, 880, 968, 1210, 1760, 1861, 1936, 2420, 3520, 3722, 3872, 4840, 7444, 7744, 9305, 9680, 14888, 18610, 19360, 20471, 29776, 37220, 38720, 40942, 59552, 74440, 81884, 102355, 119104, 148880, 163768, 204710, 225181, 297760, 327536, 409420, 450362, 595520, 655072, 818840, 900724, 1125905, 1310144, 1637680, 1801448, 2251810, 3275360, 3602896, 4503620, 6550720, 7205792, 9007240, 14411584, 18014480, 36028960, 72057920]

約数ペア:

[(1, 72057920), (2, 36028960), (4, 18014480), (5, 14411584), (8, 9007240), (10, 7205792), (11, 6550720), (16, 4503620), (20, 3602896), (22, 3275360), (32, 2251810), (40, 1801448), (44, 1637680), (55, 1310144), (64, 1125905), (80, 900724), (88, 818840), (110, 655072), (121, 595520), (160, 450362), (176, 409420), (220, 327536), (242, 297760), (320, 225181), (352, 204710), (440, 163768), (484, 148880), (605, 119104), (704, 102355), (880, 81884), (968, 74440), (1210, 59552), (1760, 40942), (1861, 38720), (1936, 37220), (2420, 29776), (3520, 20471), (3722, 19360), (3872, 18610), (4840, 14888), (7444, 9680), (7744, 9305)]