640251304

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{14639}}^1$

素因数の和:14734

約数の個数: 64

約数和(自身を含む): 1517875200

約数和(自身を除く): 877623896

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 71, 77, 88, 142, 154, 284, 308, 497, 568, 616, 781, 994, 1562, 1988, 3124, 3976, 5467, 6248, 10934, 14639, 21868, 29278, 43736, 58556, 102473, 117112, 161029, 204946, 322058, 409892, 644116, 819784, 1039369, 1127203, 1288232, 2078738, 2254406, 4157476, 4508812, 7275583, 8314952, 9017624, 11433059, 14551166, 22866118, 29102332, 45732236, 58204664, 80031413, 91464472, 160062826, 320125652, 640251304]

約数ペア:

[(1, 640251304), (2, 320125652), (4, 160062826), (7, 91464472), (8, 80031413), (11, 58204664), (14, 45732236), (22, 29102332), (28, 22866118), (44, 14551166), (56, 11433059), (71, 9017624), (77, 8314952), (88, 7275583), (142, 4508812), (154, 4157476), (284, 2254406), (308, 2078738), (497, 1288232), (568, 1127203), (616, 1039369), (781, 819784), (994, 644116), (1562, 409892), (1988, 322058), (3124, 204946), (3976, 161029), (5467, 117112), (6248, 102473), (10934, 58556), (14639, 43736), (21868, 29278)]