633992020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{5189}}^1$

素因数の和:5388

約数の個数: 48

約数和(自身を含む): 1373274000

約数和(自身を除く): 739281980

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 149, 164, 205, 298, 410, 596, 745, 820, 1490, 2980, 5189, 6109, 10378, 12218, 20756, 24436, 25945, 30545, 51890, 61090, 103780, 122180, 212749, 425498, 773161, 850996, 1063745, 1546322, 2127490, 3092644, 3865805, 4254980, 7731610, 15463220, 31699601, 63399202, 126798404, 158498005, 316996010, 633992020]

約数ペア:

[(1, 633992020), (2, 316996010), (4, 158498005), (5, 126798404), (10, 63399202), (20, 31699601), (41, 15463220), (82, 7731610), (149, 4254980), (164, 3865805), (205, 3092644), (298, 2127490), (410, 1546322), (596, 1063745), (745, 850996), (820, 773161), (1490, 425498), (2980, 212749), (5189, 122180), (6109, 103780), (10378, 61090), (12218, 51890), (20756, 30545), (24436, 25945)]