639912

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1$

素因数の和:322

約数の個数: 64

約数和(自身を含む): 1975680

約数和(自身を除く): 1335768

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 78, 84, 91, 104, 156, 168, 182, 273, 293, 312, 364, 546, 586, 728, 879, 1092, 1172, 1758, 2051, 2184, 2344, 3516, 3809, 4102, 6153, 7032, 7618, 8204, 11427, 12306, 15236, 16408, 22854, 24612, 26663, 30472, 45708, 49224, 53326, 79989, 91416, 106652, 159978, 213304, 319956, 639912]

約数ペア:

[(1, 639912), (2, 319956), (3, 213304), (4, 159978), (6, 106652), (7, 91416), (8, 79989), (12, 53326), (13, 49224), (14, 45708), (21, 30472), (24, 26663), (26, 24612), (28, 22854), (39, 16408), (42, 15236), (52, 12306), (56, 11427), (78, 8204), (84, 7618), (91, 7032), (104, 6153), (156, 4102), (168, 3809), (182, 3516), (273, 2344), (293, 2184), (312, 2051), (364, 1758), (546, 1172), (586, 1092), (728, 879)]