1999686520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1607}}^1\times {\mathrm{2393}}^1$

素因数の和:4024

約数の個数: 64

約数和(自身を含む): 4850435520

約数和(自身を除く): 2850749000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1607, 2393, 3214, 4786, 6428, 8035, 9572, 11965, 12856, 16070, 19144, 20891, 23930, 31109, 32140, 41782, 47860, 62218, 64280, 83564, 95720, 104455, 124436, 155545, 167128, 208910, 248872, 311090, 417820, 622180, 835640, 1244360, 3845551, 7691102, 15382204, 19227755, 30764408, 38455510, 49992163, 76911020, 99984326, 153822040, 199968652, 249960815, 399937304, 499921630, 999843260, 1999686520]

約数ペア:

[(1, 1999686520), (2, 999843260), (4, 499921630), (5, 399937304), (8, 249960815), (10, 199968652), (13, 153822040), (20, 99984326), (26, 76911020), (40, 49992163), (52, 38455510), (65, 30764408), (104, 19227755), (130, 15382204), (260, 7691102), (520, 3845551), (1607, 1244360), (2393, 835640), (3214, 622180), (4786, 417820), (6428, 311090), (8035, 248872), (9572, 208910), (11965, 167128), (12856, 155545), (16070, 124436), (19144, 104455), (20891, 95720), (23930, 83564), (31109, 64280), (32140, 62218), (41782, 47860)]