85607320

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:412

約数の個数: 64

約数和(自身を含む): 197316000

約数和(自身を除く): 111708680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 139, 173, 178, 278, 346, 356, 445, 556, 692, 695, 712, 865, 890, 1112, 1384, 1390, 1730, 1780, 2780, 3460, 3560, 5560, 6920, 12371, 15397, 24047, 24742, 30794, 48094, 49484, 61588, 61855, 76985, 96188, 98968, 120235, 123176, 123710, 153970, 192376, 240470, 247420, 307940, 480940, 494840, 615880, 961880, 2140183, 4280366, 8560732, 10700915, 17121464, 21401830, 42803660, 85607320]

約数ペア:

[(1, 85607320), (2, 42803660), (4, 21401830), (5, 17121464), (8, 10700915), (10, 8560732), (20, 4280366), (40, 2140183), (89, 961880), (139, 615880), (173, 494840), (178, 480940), (278, 307940), (346, 247420), (356, 240470), (445, 192376), (556, 153970), (692, 123710), (695, 123176), (712, 120235), (865, 98968), (890, 96188), (1112, 76985), (1384, 61855), (1390, 61588), (1730, 49484), (1780, 48094), (2780, 30794), (3460, 24742), (3560, 24047), (5560, 15397), (6920, 12371)]