19019650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1009}}^1$

素因数の和:1063

約数の個数: 48

約数和(自身を含む): 39450600

約数和(自身を除く): 20430950

約数列:

[1, 2, 5, 10, 13, 25, 26, 29, 50, 58, 65, 130, 145, 290, 325, 377, 650, 725, 754, 1009, 1450, 1885, 2018, 3770, 5045, 9425, 10090, 13117, 18850, 25225, 26234, 29261, 50450, 58522, 65585, 131170, 146305, 292610, 327925, 380393, 655850, 731525, 760786, 1463050, 1901965, 3803930, 9509825, 19019650]

約数ペア:

[(1, 19019650), (2, 9509825), (5, 3803930), (10, 1901965), (13, 1463050), (25, 760786), (26, 731525), (29, 655850), (50, 380393), (58, 327925), (65, 292610), (130, 146305), (145, 131170), (290, 65585), (325, 58522), (377, 50450), (650, 29261), (725, 26234), (754, 25225), (1009, 18850), (1450, 13117), (1885, 10090), (2018, 9425), (3770, 5045)]