19646770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1249}}^1$

素因数の和:1291

約数の個数: 48

約数和(自身を含む): 41895000

約数和(自身を除く): 22248230

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 121, 130, 143, 242, 286, 605, 715, 1210, 1249, 1430, 1573, 2498, 3146, 6245, 7865, 12490, 13739, 15730, 16237, 27478, 32474, 68695, 81185, 137390, 151129, 162370, 178607, 302258, 357214, 755645, 893035, 1511290, 1786070, 1964677, 3929354, 9823385, 19646770]

約数ペア:

[(1, 19646770), (2, 9823385), (5, 3929354), (10, 1964677), (11, 1786070), (13, 1511290), (22, 893035), (26, 755645), (55, 357214), (65, 302258), (110, 178607), (121, 162370), (130, 151129), (143, 137390), (242, 81185), (286, 68695), (605, 32474), (715, 27478), (1210, 16237), (1249, 15730), (1430, 13739), (1573, 12490), (2498, 7865), (3146, 6245)]