20213612500

素因数分解:

$2^2\times 5^5\times {\mathrm{83}}^1\times {\mathrm{19483}}^1$

素因数の和:19595

約数の個数: 72

約数和(自身を含む): 44749448352

約数和(自身を除く): 24535835852

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 83, 100, 125, 166, 250, 332, 415, 500, 625, 830, 1250, 1660, 2075, 2500, 3125, 4150, 6250, 8300, 10375, 12500, 19483, 20750, 38966, 41500, 51875, 77932, 97415, 103750, 194830, 207500, 259375, 389660, 487075, 518750, 974150, 1037500, 1617089, 1948300, 2435375, 3234178, 4870750, 6468356, 8085445, 9741500, 12176875, 16170890, 24353750, 32341780, 40427225, 48707500, 60884375, 80854450, 121768750, 161708900, 202136125, 243537500, 404272250, 808544500, 1010680625, 2021361250, 4042722500, 5053403125, 10106806250, 20213612500]

約数ペア:

[(1, 20213612500), (2, 10106806250), (4, 5053403125), (5, 4042722500), (10, 2021361250), (20, 1010680625), (25, 808544500), (50, 404272250), (83, 243537500), (100, 202136125), (125, 161708900), (166, 121768750), (250, 80854450), (332, 60884375), (415, 48707500), (500, 40427225), (625, 32341780), (830, 24353750), (1250, 16170890), (1660, 12176875), (2075, 9741500), (2500, 8085445), (3125, 6468356), (4150, 4870750), (6250, 3234178), (8300, 2435375), (10375, 1948300), (12500, 1617089), (19483, 1037500), (20750, 974150), (38966, 518750), (41500, 487075), (51875, 389660), (77932, 259375), (97415, 207500), (103750, 194830)]