31842020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{787}}^1$

素因数の和:837

約数の個数: 72

約数和(自身を含む): 81283776

約数和(自身を除く): 49441756

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 289, 340, 476, 578, 595, 787, 1156, 1190, 1445, 1574, 2023, 2380, 2890, 3148, 3935, 4046, 5509, 5780, 7870, 8092, 10115, 11018, 13379, 15740, 20230, 22036, 26758, 27545, 40460, 53516, 55090, 66895, 93653, 110180, 133790, 187306, 227443, 267580, 374612, 454886, 468265, 909772, 936530, 1137215, 1592101, 1873060, 2274430, 3184202, 4548860, 6368404, 7960505, 15921010, 31842020]

約数ペア:

[(1, 31842020), (2, 15921010), (4, 7960505), (5, 6368404), (7, 4548860), (10, 3184202), (14, 2274430), (17, 1873060), (20, 1592101), (28, 1137215), (34, 936530), (35, 909772), (68, 468265), (70, 454886), (85, 374612), (119, 267580), (140, 227443), (170, 187306), (238, 133790), (289, 110180), (340, 93653), (476, 66895), (578, 55090), (595, 53516), (787, 40460), (1156, 27545), (1190, 26758), (1445, 22036), (1574, 20230), (2023, 15740), (2380, 13379), (2890, 11018), (3148, 10115), (3935, 8092), (4046, 7870), (5509, 5780)]