19158889490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{557}}^1\times {\mathrm{20353}}^1$

素因数の和:20943

約数の個数: 48

約数和(自身を含む): 37411710408

約数和(自身を除く): 18252820918

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 557, 845, 1114, 1690, 2785, 5570, 7241, 14482, 20353, 36205, 40706, 72410, 94133, 101765, 188266, 203530, 264589, 470665, 529178, 941330, 1322945, 2645890, 3439657, 6879314, 11336621, 17198285, 22673242, 34396570, 56683105, 113366210, 147376073, 294752146, 736880365, 1473760730, 1915888949, 3831777898, 9579444745, 19158889490]

約数ペア:

[(1, 19158889490), (2, 9579444745), (5, 3831777898), (10, 1915888949), (13, 1473760730), (26, 736880365), (65, 294752146), (130, 147376073), (169, 113366210), (338, 56683105), (557, 34396570), (845, 22673242), (1114, 17198285), (1690, 11336621), (2785, 6879314), (5570, 3439657), (7241, 2645890), (14482, 1322945), (20353, 941330), (36205, 529178), (40706, 470665), (72410, 264589), (94133, 203530), (101765, 188266)]