19625450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{277}}^1$

素因数の和:411

約数の個数: 48

約数和(自身を含む): 39815160

約数和(自身を除く): 20189710

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 109, 130, 218, 277, 325, 545, 554, 650, 1090, 1385, 1417, 2725, 2770, 2834, 3601, 5450, 6925, 7085, 7202, 13850, 14170, 18005, 30193, 35425, 36010, 60386, 70850, 90025, 150965, 180050, 301930, 392509, 754825, 785018, 1509650, 1962545, 3925090, 9812725, 19625450]

約数ペア:

[(1, 19625450), (2, 9812725), (5, 3925090), (10, 1962545), (13, 1509650), (25, 785018), (26, 754825), (50, 392509), (65, 301930), (109, 180050), (130, 150965), (218, 90025), (277, 70850), (325, 60386), (545, 36010), (554, 35425), (650, 30193), (1090, 18005), (1385, 14170), (1417, 13850), (2725, 7202), (2770, 7085), (2834, 6925), (3601, 5450)]