813727780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1471}}^1\times {\mathrm{1627}}^1$

素因数の和:3124

約数の個数: 48

約数和(自身を含む): 1811690496

約数和(自身を除く): 997962716

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 1471, 1627, 2942, 3254, 5884, 6508, 7355, 8135, 14710, 16270, 25007, 27659, 29420, 32540, 50014, 55318, 100028, 110636, 125035, 138295, 250070, 276590, 500140, 553180, 2393317, 4786634, 9573268, 11966585, 23933170, 40686389, 47866340, 81372778, 162745556, 203431945, 406863890, 813727780]

約数ペア:

[(1, 813727780), (2, 406863890), (4, 203431945), (5, 162745556), (10, 81372778), (17, 47866340), (20, 40686389), (34, 23933170), (68, 11966585), (85, 9573268), (170, 4786634), (340, 2393317), (1471, 553180), (1627, 500140), (2942, 276590), (3254, 250070), (5884, 138295), (6508, 125035), (7355, 110636), (8135, 100028), (14710, 55318), (16270, 50014), (25007, 32540), (27659, 29420)]