640985712

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{4177}}^1$

素因数の和:4350

約数の個数: 80

約数和(自身を含む): 1740721920

約数和(自身を除く): 1099736208

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 46, 48, 69, 92, 138, 139, 184, 276, 278, 368, 417, 552, 556, 834, 1104, 1112, 1668, 2224, 3197, 3336, 4177, 6394, 6672, 8354, 9591, 12531, 12788, 16708, 19182, 25062, 25576, 33416, 38364, 50124, 51152, 66832, 76728, 96071, 100248, 153456, 192142, 200496, 288213, 384284, 576426, 580603, 768568, 1152852, 1161206, 1537136, 1741809, 2305704, 2322412, 3483618, 4611408, 4644824, 6967236, 9289648, 13353869, 13934472, 26707738, 27868944, 40061607, 53415476, 80123214, 106830952, 160246428, 213661904, 320492856, 640985712]

約数ペア:

[(1, 640985712), (2, 320492856), (3, 213661904), (4, 160246428), (6, 106830952), (8, 80123214), (12, 53415476), (16, 40061607), (23, 27868944), (24, 26707738), (46, 13934472), (48, 13353869), (69, 9289648), (92, 6967236), (138, 4644824), (139, 4611408), (184, 3483618), (276, 2322412), (278, 2305704), (368, 1741809), (417, 1537136), (552, 1161206), (556, 1152852), (834, 768568), (1104, 580603), (1112, 576426), (1668, 384284), (2224, 288213), (3197, 200496), (3336, 192142), (4177, 153456), (6394, 100248), (6672, 96071), (8354, 76728), (9591, 66832), (12531, 51152), (12788, 50124), (16708, 38364), (19182, 33416), (25062, 25576)]