2018016875

素因数分解:

$5^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{631}}^1$

素因数の和:718

約数の個数: 80

約数和(自身を含む): 3127398912

約数和(自身を除く): 1109382037

約数列:

[1, 5, 7, 17, 25, 35, 43, 85, 119, 125, 175, 215, 301, 425, 595, 625, 631, 731, 875, 1075, 1505, 2125, 2975, 3155, 3655, 4375, 4417, 5117, 5375, 7525, 10625, 10727, 14875, 15775, 18275, 22085, 25585, 26875, 27133, 37625, 53635, 74375, 75089, 78875, 91375, 110425, 127925, 135665, 188125, 189931, 268175, 375445, 394375, 456875, 461261, 552125, 639625, 678325, 949655, 1340875, 1877225, 2306305, 2760625, 3198125, 3228827, 3391625, 4748275, 6704375, 9386125, 11531525, 16144135, 16958125, 23741375, 46930625, 57657625, 80720675, 118706875, 288288125, 403603375, 2018016875]

約数ペア:

[(1, 2018016875), (5, 403603375), (7, 288288125), (17, 118706875), (25, 80720675), (35, 57657625), (43, 46930625), (85, 23741375), (119, 16958125), (125, 16144135), (175, 11531525), (215, 9386125), (301, 6704375), (425, 4748275), (595, 3391625), (625, 3228827), (631, 3198125), (731, 2760625), (875, 2306305), (1075, 1877225), (1505, 1340875), (2125, 949655), (2975, 678325), (3155, 639625), (3655, 552125), (4375, 461261), (4417, 456875), (5117, 394375), (5375, 375445), (7525, 268175), (10625, 189931), (10727, 188125), (14875, 135665), (15775, 127925), (18275, 110425), (22085, 91375), (25585, 78875), (26875, 75089), (27133, 74375), (37625, 53635)]