20800418

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{397}}^1$

素因数の和:506

約数の個数: 32

約数和(自身を含む): 35074944

約数和(自身を除く): 14274526

約数列:

[1, 2, 17, 23, 34, 46, 67, 134, 391, 397, 782, 794, 1139, 1541, 2278, 3082, 6749, 9131, 13498, 18262, 26197, 26599, 52394, 53198, 155227, 310454, 452183, 611777, 904366, 1223554, 10400209, 20800418]

約数ペア:

[(1, 20800418), (2, 10400209), (17, 1223554), (23, 904366), (34, 611777), (46, 452183), (67, 310454), (134, 155227), (391, 53198), (397, 52394), (782, 26599), (794, 26197), (1139, 18262), (1541, 13498), (2278, 9131), (3082, 6749)]