66712720

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{8597}}^1$

素因数の和:8707

約数の個数: 40

約数和(自身を含む): 156724344

約数和(自身を除く): 90011624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 8597, 17194, 34388, 42985, 68776, 85970, 137552, 171940, 343880, 687760, 833909, 1667818, 3335636, 4169545, 6671272, 8339090, 13342544, 16678180, 33356360, 66712720]

約数ペア:

[(1, 66712720), (2, 33356360), (4, 16678180), (5, 13342544), (8, 8339090), (10, 6671272), (16, 4169545), (20, 3335636), (40, 1667818), (80, 833909), (97, 687760), (194, 343880), (388, 171940), (485, 137552), (776, 85970), (970, 68776), (1552, 42985), (1940, 34388), (3880, 17194), (7760, 8597)]