2009486875

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{7129}}^1$

素因数の和:7201

約数の個数: 40

約数和(自身を含む): 2806539120

約数和(自身を除く): 797052245

約数列:

[1, 5, 11, 25, 41, 55, 125, 205, 275, 451, 625, 1025, 1375, 2255, 5125, 6875, 7129, 11275, 25625, 35645, 56375, 78419, 178225, 281875, 292289, 392095, 891125, 1461445, 1960475, 3215179, 4455625, 7307225, 9802375, 16075895, 36536125, 49011875, 80379475, 182680625, 401897375, 2009486875]

約数ペア:

[(1, 2009486875), (5, 401897375), (11, 182680625), (25, 80379475), (41, 49011875), (55, 36536125), (125, 16075895), (205, 9802375), (275, 7307225), (451, 4455625), (625, 3215179), (1025, 1960475), (1375, 1461445), (2255, 891125), (5125, 392095), (6875, 292289), (7129, 281875), (11275, 178225), (25625, 78419), (35645, 56375)]