20635444

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 39916800

約数和(自身を除く): 19281356

約数列:

[1, 2, 4, 19, 38, 47, 53, 76, 94, 106, 109, 188, 212, 218, 436, 893, 1007, 1786, 2014, 2071, 2491, 3572, 4028, 4142, 4982, 5123, 5777, 8284, 9964, 10246, 11554, 20492, 23108, 47329, 94658, 97337, 109763, 189316, 194674, 219526, 271519, 389348, 439052, 543038, 1086076, 5158861, 10317722, 20635444]

約数ペア:

[(1, 20635444), (2, 10317722), (4, 5158861), (19, 1086076), (38, 543038), (47, 439052), (53, 389348), (76, 271519), (94, 219526), (106, 194674), (109, 189316), (188, 109763), (212, 97337), (218, 94658), (436, 47329), (893, 23108), (1007, 20492), (1786, 11554), (2014, 10246), (2071, 9964), (2491, 8284), (3572, 5777), (4028, 5123), (4142, 4982)]