81827500

素因数分解:

$2^2\times 5^4\times {\mathrm{71}}^1\times {\mathrm{461}}^1$

素因数の和:556

約数の個数: 60

約数和(自身を含む): 181854288

約数和(自身を除く): 100026788

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 125, 142, 250, 284, 355, 461, 500, 625, 710, 922, 1250, 1420, 1775, 1844, 2305, 2500, 3550, 4610, 7100, 8875, 9220, 11525, 17750, 23050, 32731, 35500, 44375, 46100, 57625, 65462, 88750, 115250, 130924, 163655, 177500, 230500, 288125, 327310, 576250, 654620, 818275, 1152500, 1636550, 3273100, 4091375, 8182750, 16365500, 20456875, 40913750, 81827500]

約数ペア:

[(1, 81827500), (2, 40913750), (4, 20456875), (5, 16365500), (10, 8182750), (20, 4091375), (25, 3273100), (50, 1636550), (71, 1152500), (100, 818275), (125, 654620), (142, 576250), (250, 327310), (284, 288125), (355, 230500), (461, 177500), (500, 163655), (625, 130924), (710, 115250), (922, 88750), (1250, 65462), (1420, 57625), (1775, 46100), (1844, 44375), (2305, 35500), (2500, 32731), (3550, 23050), (4610, 17750), (7100, 11525), (8875, 9220)]