8004200

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1291}}^1$

素因数の和:1338

約数の個数: 48

約数和(自身を含む): 19224960

約数和(自身を除く): 11220760

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1291, 1550, 2582, 3100, 5164, 6200, 6455, 10328, 12910, 25820, 32275, 40021, 51640, 64550, 80042, 129100, 160084, 200105, 258200, 320168, 400210, 800420, 1000525, 1600840, 2001050, 4002100, 8004200]

約数ペア:

[(1, 8004200), (2, 4002100), (4, 2001050), (5, 1600840), (8, 1000525), (10, 800420), (20, 400210), (25, 320168), (31, 258200), (40, 200105), (50, 160084), (62, 129100), (100, 80042), (124, 64550), (155, 51640), (200, 40021), (248, 32275), (310, 25820), (620, 12910), (775, 10328), (1240, 6455), (1291, 6200), (1550, 5164), (2582, 3100)]