20164360

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{5197}}^1$

素因数の和:5305

約数の個数: 32

約数和(自身を含む): 45846360

約数和(自身を除く): 25682000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 5197, 10394, 20788, 25985, 41576, 51970, 103940, 207880, 504109, 1008218, 2016436, 2520545, 4032872, 5041090, 10082180, 20164360]

約数ペア:

[(1, 20164360), (2, 10082180), (4, 5041090), (5, 4032872), (8, 2520545), (10, 2016436), (20, 1008218), (40, 504109), (97, 207880), (194, 103940), (388, 51970), (485, 41576), (776, 25985), (970, 20788), (1940, 10394), (3880, 5197)]