20644230

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1$

素因数の和:489

約数の個数: 64

約数和(自身を含む): 52228800

約数和(自身を除く): 31584570

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 61, 87, 122, 145, 174, 183, 290, 305, 366, 389, 435, 610, 778, 870, 915, 1167, 1769, 1830, 1945, 2334, 3538, 3890, 5307, 5835, 8845, 10614, 11281, 11670, 17690, 22562, 23729, 26535, 33843, 47458, 53070, 56405, 67686, 71187, 112810, 118645, 142374, 169215, 237290, 338430, 355935, 688141, 711870, 1376282, 2064423, 3440705, 4128846, 6881410, 10322115, 20644230]

約数ペア:

[(1, 20644230), (2, 10322115), (3, 6881410), (5, 4128846), (6, 3440705), (10, 2064423), (15, 1376282), (29, 711870), (30, 688141), (58, 355935), (61, 338430), (87, 237290), (122, 169215), (145, 142374), (174, 118645), (183, 112810), (290, 71187), (305, 67686), (366, 56405), (389, 53070), (435, 47458), (610, 33843), (778, 26535), (870, 23729), (915, 22562), (1167, 17690), (1769, 11670), (1830, 11281), (1945, 10614), (2334, 8845), (3538, 5835), (3890, 5307)]