641646538

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{461}}^1$

素因数の和:607

約数の個数: 64

約数和(自身を含む): 1140023808

約数和(自身を除く): 498377270

約数列:

[1, 2, 13, 17, 26, 34, 47, 67, 94, 134, 221, 442, 461, 611, 799, 871, 922, 1139, 1222, 1598, 1742, 2278, 3149, 5993, 6298, 7837, 10387, 11986, 14807, 15674, 20774, 21667, 29614, 30887, 40937, 43334, 53533, 61774, 81874, 101881, 107066, 203762, 281671, 368339, 401531, 525079, 563342, 695929, 736678, 803062, 1050158, 1391858, 1451689, 2903378, 4788407, 6826027, 9576814, 13652054, 18871957, 24678713, 37743914, 49357426, 320823269, 641646538]

約数ペア:

[(1, 641646538), (2, 320823269), (13, 49357426), (17, 37743914), (26, 24678713), (34, 18871957), (47, 13652054), (67, 9576814), (94, 6826027), (134, 4788407), (221, 2903378), (442, 1451689), (461, 1391858), (611, 1050158), (799, 803062), (871, 736678), (922, 695929), (1139, 563342), (1222, 525079), (1598, 401531), (1742, 368339), (2278, 281671), (3149, 203762), (5993, 107066), (6298, 101881), (7837, 81874), (10387, 61774), (11986, 53533), (14807, 43334), (15674, 40937), (20774, 30887), (21667, 29614)]