200419723

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 246343680

約数和(自身を除く): 45923957

約数列:

[1, 7, 23, 71, 89, 161, 197, 497, 623, 1379, 1633, 2047, 4531, 6319, 11431, 13987, 14329, 17533, 31717, 44233, 97909, 122731, 145337, 321701, 403259, 1017359, 1244843, 2251907, 2822813, 8713901, 28631389, 200419723]

約数ペア:

[(1, 200419723), (7, 28631389), (23, 8713901), (71, 2822813), (89, 2251907), (161, 1244843), (197, 1017359), (497, 403259), (623, 321701), (1379, 145337), (1633, 122731), (2047, 97909), (4531, 44233), (6319, 31717), (11431, 17533), (13987, 14329)]