640685976

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{23687}}^1$

素因数の和:23733

約数の個数: 96

約数和(自身を含む): 1944311040

約数和(自身を除く): 1303625064

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 23, 24, 28, 42, 46, 49, 56, 69, 84, 92, 98, 138, 147, 161, 168, 184, 196, 276, 294, 322, 392, 483, 552, 588, 644, 966, 1127, 1176, 1288, 1932, 2254, 3381, 3864, 4508, 6762, 9016, 13524, 23687, 27048, 47374, 71061, 94748, 142122, 165809, 189496, 284244, 331618, 497427, 544801, 568488, 663236, 994854, 1089602, 1160663, 1326472, 1634403, 1989708, 2179204, 2321326, 3268806, 3481989, 3813607, 3979416, 4358408, 4642652, 6537612, 6963978, 7627214, 9285304, 11440821, 13075224, 13927956, 15254428, 22881642, 26695249, 27855912, 30508856, 45763284, 53390498, 80085747, 91526568, 106780996, 160171494, 213561992, 320342988, 640685976]

約数ペア:

[(1, 640685976), (2, 320342988), (3, 213561992), (4, 160171494), (6, 106780996), (7, 91526568), (8, 80085747), (12, 53390498), (14, 45763284), (21, 30508856), (23, 27855912), (24, 26695249), (28, 22881642), (42, 15254428), (46, 13927956), (49, 13075224), (56, 11440821), (69, 9285304), (84, 7627214), (92, 6963978), (98, 6537612), (138, 4642652), (147, 4358408), (161, 3979416), (168, 3813607), (184, 3481989), (196, 3268806), (276, 2321326), (294, 2179204), (322, 1989708), (392, 1634403), (483, 1326472), (552, 1160663), (588, 1089602), (644, 994854), (966, 663236), (1127, 568488), (1176, 544801), (1288, 497427), (1932, 331618), (2254, 284244), (3381, 189496), (3864, 165809), (4508, 142122), (6762, 94748), (9016, 71061), (13524, 47374), (23687, 27048)]