1389996252

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{691}}^1\times {\mathrm{787}}^1$

素因数の和:1559

約数の個数: 72

約数和(自身を含む): 3572779392

約数和(自身を除く): 2182783140

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 213, 284, 426, 639, 691, 787, 852, 1278, 1382, 1574, 2073, 2361, 2556, 2764, 3148, 4146, 4722, 6219, 7083, 8292, 9444, 12438, 14166, 24876, 28332, 49061, 55877, 98122, 111754, 147183, 167631, 196244, 223508, 294366, 335262, 441549, 502893, 543817, 588732, 670524, 883098, 1005786, 1087634, 1631451, 1766196, 2011572, 2175268, 3262902, 4894353, 6525804, 9788706, 19577412, 38611007, 77222014, 115833021, 154444028, 231666042, 347499063, 463332084, 694998126, 1389996252]

約数ペア:

[(1, 1389996252), (2, 694998126), (3, 463332084), (4, 347499063), (6, 231666042), (9, 154444028), (12, 115833021), (18, 77222014), (36, 38611007), (71, 19577412), (142, 9788706), (213, 6525804), (284, 4894353), (426, 3262902), (639, 2175268), (691, 2011572), (787, 1766196), (852, 1631451), (1278, 1087634), (1382, 1005786), (1574, 883098), (2073, 670524), (2361, 588732), (2556, 543817), (2764, 502893), (3148, 441549), (4146, 335262), (4722, 294366), (6219, 223508), (7083, 196244), (8292, 167631), (9444, 147183), (12438, 111754), (14166, 98122), (24876, 55877), (28332, 49061)]