291208580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{7517}}^1$

素因数の和:7688

約数の個数: 48

約数和(自身を含む): 663087600

約数和(自身を除く): 371879020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 149, 260, 298, 596, 745, 1490, 1937, 2980, 3874, 7517, 7748, 9685, 15034, 19370, 30068, 37585, 38740, 75170, 97721, 150340, 195442, 390884, 488605, 977210, 1120033, 1954420, 2240066, 4480132, 5600165, 11200330, 14560429, 22400660, 29120858, 58241716, 72802145, 145604290, 291208580]

約数ペア:

[(1, 291208580), (2, 145604290), (4, 72802145), (5, 58241716), (10, 29120858), (13, 22400660), (20, 14560429), (26, 11200330), (52, 5600165), (65, 4480132), (130, 2240066), (149, 1954420), (260, 1120033), (298, 977210), (596, 488605), (745, 390884), (1490, 195442), (1937, 150340), (2980, 97721), (3874, 75170), (7517, 38740), (7748, 37585), (9685, 30068), (15034, 19370)]