28123578

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1583}}^1$

素因数の和:1648

約数の個数: 64

約数和(自身を含む): 72990720

約数和(自身を除く): 44867142

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 47, 54, 63, 94, 126, 141, 189, 282, 329, 378, 423, 658, 846, 987, 1269, 1583, 1974, 2538, 2961, 3166, 4749, 5922, 8883, 9498, 11081, 14247, 17766, 22162, 28494, 33243, 42741, 66486, 74401, 85482, 99729, 148802, 199458, 223203, 299187, 446406, 520807, 598374, 669609, 1041614, 1339218, 1562421, 2008827, 3124842, 4017654, 4687263, 9374526, 14061789, 28123578]

約数ペア:

[(1, 28123578), (2, 14061789), (3, 9374526), (6, 4687263), (7, 4017654), (9, 3124842), (14, 2008827), (18, 1562421), (21, 1339218), (27, 1041614), (42, 669609), (47, 598374), (54, 520807), (63, 446406), (94, 299187), (126, 223203), (141, 199458), (189, 148802), (282, 99729), (329, 85482), (378, 74401), (423, 66486), (658, 42741), (846, 33243), (987, 28494), (1269, 22162), (1583, 17766), (1974, 14247), (2538, 11081), (2961, 9498), (3166, 8883), (4749, 5922)]