31916290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:259

約数の個数: 64

約数和(自身を含む): 68428800

約数和(自身を除く): 36512510

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 70, 89, 94, 109, 178, 218, 235, 329, 445, 470, 545, 623, 658, 763, 890, 1090, 1246, 1526, 1645, 3115, 3290, 3815, 4183, 5123, 6230, 7630, 8366, 9701, 10246, 19402, 20915, 25615, 29281, 35861, 41830, 48505, 51230, 58562, 67907, 71722, 97010, 135814, 146405, 179305, 292810, 339535, 358610, 455947, 679070, 911894, 2279735, 3191629, 4559470, 6383258, 15958145, 31916290]

約数ペア:

[(1, 31916290), (2, 15958145), (5, 6383258), (7, 4559470), (10, 3191629), (14, 2279735), (35, 911894), (47, 679070), (70, 455947), (89, 358610), (94, 339535), (109, 292810), (178, 179305), (218, 146405), (235, 135814), (329, 97010), (445, 71722), (470, 67907), (545, 58562), (623, 51230), (658, 48505), (763, 41830), (890, 35861), (1090, 29281), (1246, 25615), (1526, 20915), (1645, 19402), (3115, 10246), (3290, 9701), (3815, 8366), (4183, 7630), (5123, 6230)]