20191756

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 20450804

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 107, 191, 214, 247, 382, 428, 494, 764, 988, 1391, 2033, 2483, 2782, 3629, 4066, 4966, 5564, 7258, 8132, 9932, 14516, 20437, 26429, 40874, 47177, 52858, 81748, 94354, 105716, 188708, 265681, 388303, 531362, 776606, 1062724, 1553212, 5047939, 10095878, 20191756]

約数ペア:

[(1, 20191756), (2, 10095878), (4, 5047939), (13, 1553212), (19, 1062724), (26, 776606), (38, 531362), (52, 388303), (76, 265681), (107, 188708), (191, 105716), (214, 94354), (247, 81748), (382, 52858), (428, 47177), (494, 40874), (764, 26429), (988, 20437), (1391, 14516), (2033, 9932), (2483, 8132), (2782, 7258), (3629, 5564), (4066, 4966)]