1292080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{521}}^1$

素因数の和:565

約数の個数: 40

約数和(自身を含む): 3106944

約数和(自身を除く): 1814864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 521, 620, 1042, 1240, 2084, 2480, 2605, 4168, 5210, 8336, 10420, 16151, 20840, 32302, 41680, 64604, 80755, 129208, 161510, 258416, 323020, 646040, 1292080]

約数ペア:

[(1, 1292080), (2, 646040), (4, 323020), (5, 258416), (8, 161510), (10, 129208), (16, 80755), (20, 64604), (31, 41680), (40, 32302), (62, 20840), (80, 16151), (124, 10420), (155, 8336), (248, 5210), (310, 4168), (496, 2605), (521, 2480), (620, 2084), (1042, 1240)]