64649620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1609}}^1$

素因数の和:1673

約数の個数: 72

約数和(自身を含む): 161882280

約数和(自身を除く): 97232660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 490, 574, 820, 980, 1148, 1435, 1609, 2009, 2870, 3218, 4018, 5740, 6436, 8036, 8045, 10045, 11263, 16090, 20090, 22526, 32180, 40180, 45052, 56315, 65969, 78841, 112630, 131938, 157682, 225260, 263876, 315364, 329845, 394205, 461783, 659690, 788410, 923566, 1319380, 1576820, 1847132, 2308915, 3232481, 4617830, 6464962, 9235660, 12929924, 16162405, 32324810, 64649620]

約数ペア:

[(1, 64649620), (2, 32324810), (4, 16162405), (5, 12929924), (7, 9235660), (10, 6464962), (14, 4617830), (20, 3232481), (28, 2308915), (35, 1847132), (41, 1576820), (49, 1319380), (70, 923566), (82, 788410), (98, 659690), (140, 461783), (164, 394205), (196, 329845), (205, 315364), (245, 263876), (287, 225260), (410, 157682), (490, 131938), (574, 112630), (820, 78841), (980, 65969), (1148, 56315), (1435, 45052), (1609, 40180), (2009, 32180), (2870, 22526), (3218, 20090), (4018, 16090), (5740, 11263), (6436, 10045), (8036, 8045)]