80042000

素因数分解:

$2^4\times 5^3\times {\mathrm{31}}^1\times {\mathrm{1291}}^1$

素因数の和:1345

約数の個数: 80

約数和(自身を含む): 199939584

約数和(自身を除く): 119897584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 125, 155, 200, 248, 250, 310, 400, 496, 500, 620, 775, 1000, 1240, 1291, 1550, 2000, 2480, 2582, 3100, 3875, 5164, 6200, 6455, 7750, 10328, 12400, 12910, 15500, 20656, 25820, 31000, 32275, 40021, 51640, 62000, 64550, 80042, 103280, 129100, 160084, 161375, 200105, 258200, 320168, 322750, 400210, 516400, 640336, 645500, 800420, 1000525, 1291000, 1600840, 2001050, 2582000, 3201680, 4002100, 5002625, 8004200, 10005250, 16008400, 20010500, 40021000, 80042000]

約数ペア:

[(1, 80042000), (2, 40021000), (4, 20010500), (5, 16008400), (8, 10005250), (10, 8004200), (16, 5002625), (20, 4002100), (25, 3201680), (31, 2582000), (40, 2001050), (50, 1600840), (62, 1291000), (80, 1000525), (100, 800420), (124, 645500), (125, 640336), (155, 516400), (200, 400210), (248, 322750), (250, 320168), (310, 258200), (400, 200105), (496, 161375), (500, 160084), (620, 129100), (775, 103280), (1000, 80042), (1240, 64550), (1291, 62000), (1550, 51640), (2000, 40021), (2480, 32275), (2582, 31000), (3100, 25820), (3875, 20656), (5164, 15500), (6200, 12910), (6455, 12400), (7750, 10328)]