261692080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{8117}}^1$

素因数の和:8174

約数の個数: 80

約数和(自身を含む): 676456704

約数和(自身を除く): 414764624

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 8117, 16120, 16234, 32240, 32468, 40585, 64936, 81170, 105521, 129872, 162340, 211042, 251627, 324680, 422084, 503254, 527605, 649360, 844168, 1006508, 1055210, 1258135, 1688336, 2013016, 2110420, 2516270, 3271151, 4026032, 4220840, 5032540, 6542302, 8441680, 10065080, 13084604, 16355755, 20130160, 26169208, 32711510, 52338416, 65423020, 130846040, 261692080]

約数ペア:

[(1, 261692080), (2, 130846040), (4, 65423020), (5, 52338416), (8, 32711510), (10, 26169208), (13, 20130160), (16, 16355755), (20, 13084604), (26, 10065080), (31, 8441680), (40, 6542302), (52, 5032540), (62, 4220840), (65, 4026032), (80, 3271151), (104, 2516270), (124, 2110420), (130, 2013016), (155, 1688336), (208, 1258135), (248, 1055210), (260, 1006508), (310, 844168), (403, 649360), (496, 527605), (520, 503254), (620, 422084), (806, 324680), (1040, 251627), (1240, 211042), (1612, 162340), (2015, 129872), (2480, 105521), (3224, 81170), (4030, 64936), (6448, 40585), (8060, 32468), (8117, 32240), (16120, 16234)]