8991740

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{419}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 20109600

約数和(自身を除く): 11117860

約数列:

[1, 2, 4, 5, 10, 20, 29, 37, 58, 74, 116, 145, 148, 185, 290, 370, 419, 580, 740, 838, 1073, 1676, 2095, 2146, 4190, 4292, 5365, 8380, 10730, 12151, 15503, 21460, 24302, 31006, 48604, 60755, 62012, 77515, 121510, 155030, 243020, 310060, 449587, 899174, 1798348, 2247935, 4495870, 8991740]

約数ペア:

[(1, 8991740), (2, 4495870), (4, 2247935), (5, 1798348), (10, 899174), (20, 449587), (29, 310060), (37, 243020), (58, 155030), (74, 121510), (116, 77515), (145, 62012), (148, 60755), (185, 48604), (290, 31006), (370, 24302), (419, 21460), (580, 15503), (740, 12151), (838, 10730), (1073, 8380), (1676, 5365), (2095, 4292), (2146, 4190)]