8136380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{653}}^1$

素因数の和:758

約数の個数: 48

約数和(自身を含む): 19776960

約数和(自身を除く): 11640580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 653, 890, 1246, 1306, 1780, 2492, 2612, 3115, 3265, 4571, 6230, 6530, 9142, 12460, 13060, 18284, 22855, 45710, 58117, 91420, 116234, 232468, 290585, 406819, 581170, 813638, 1162340, 1627276, 2034095, 4068190, 8136380]

約数ペア:

[(1, 8136380), (2, 4068190), (4, 2034095), (5, 1627276), (7, 1162340), (10, 813638), (14, 581170), (20, 406819), (28, 290585), (35, 232468), (70, 116234), (89, 91420), (140, 58117), (178, 45710), (356, 22855), (445, 18284), (623, 13060), (653, 12460), (890, 9142), (1246, 6530), (1306, 6230), (1780, 4571), (2492, 3265), (2612, 3115)]