40407920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1223}}^1$

素因数の和:1302

約数の個数: 80

約数和(自身を含む): 109278720

約数和(自身を除く): 68870800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 59, 70, 80, 112, 118, 140, 236, 280, 295, 413, 472, 560, 590, 826, 944, 1180, 1223, 1652, 2065, 2360, 2446, 3304, 4130, 4720, 4892, 6115, 6608, 8260, 8561, 9784, 12230, 16520, 17122, 19568, 24460, 33040, 34244, 42805, 48920, 68488, 72157, 85610, 97840, 136976, 144314, 171220, 288628, 342440, 360785, 505099, 577256, 684880, 721570, 1010198, 1154512, 1443140, 2020396, 2525495, 2886280, 4040792, 5050990, 5772560, 8081584, 10101980, 20203960, 40407920]

約数ペア:

[(1, 40407920), (2, 20203960), (4, 10101980), (5, 8081584), (7, 5772560), (8, 5050990), (10, 4040792), (14, 2886280), (16, 2525495), (20, 2020396), (28, 1443140), (35, 1154512), (40, 1010198), (56, 721570), (59, 684880), (70, 577256), (80, 505099), (112, 360785), (118, 342440), (140, 288628), (236, 171220), (280, 144314), (295, 136976), (413, 97840), (472, 85610), (560, 72157), (590, 68488), (826, 48920), (944, 42805), (1180, 34244), (1223, 33040), (1652, 24460), (2065, 19568), (2360, 17122), (2446, 16520), (3304, 12230), (4130, 9784), (4720, 8561), (4892, 8260), (6115, 6608)]