638762688

素因数分解:

$2^6\times 3^2\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{431}}^1$

素因数の和:563

約数の個数: 168

約数和(自身を含む): 1917167616

約数和(自身を除く): 1278404928

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 48, 62, 64, 72, 83, 93, 96, 124, 144, 166, 186, 192, 248, 249, 279, 288, 332, 372, 431, 496, 498, 558, 576, 664, 744, 747, 862, 992, 996, 1116, 1293, 1328, 1488, 1494, 1724, 1984, 1992, 2232, 2573, 2586, 2656, 2976, 2988, 3448, 3879, 3984, 4464, 5146, 5172, 5312, 5952, 5976, 6896, 7719, 7758, 7968, 8928, 10292, 10344, 11952, 13361, 13792, 15438, 15516, 15936, 17856, 20584, 20688, 23157, 23904, 26722, 27584, 30876, 31032, 35773, 40083, 41168, 41376, 46314, 47808, 53444, 61752, 62064, 71546, 80166, 82336, 82752, 92628, 106888, 107319, 120249, 123504, 124128, 143092, 160332, 164672, 185256, 213776, 214638, 240498, 247008, 248256, 286184, 320664, 321957, 370512, 427552, 429276, 480996, 494016, 572368, 641328, 643914, 741024, 855104, 858552, 961992, 1108963, 1144736, 1282656, 1287828, 1482048, 1717104, 1923984, 2217926, 2289472, 2565312, 2575656, 3326889, 3434208, 3847968, 4435852, 5151312, 6653778, 6868416, 7695936, 8871704, 9980667, 10302624, 13307556, 17743408, 19961334, 20605248, 26615112, 35486816, 39922668, 53230224, 70973632, 79845336, 106460448, 159690672, 212920896, 319381344, 638762688]

約数ペア:

[(1, 638762688), (2, 319381344), (3, 212920896), (4, 159690672), (6, 106460448), (8, 79845336), (9, 70973632), (12, 53230224), (16, 39922668), (18, 35486816), (24, 26615112), (31, 20605248), (32, 19961334), (36, 17743408), (48, 13307556), (62, 10302624), (64, 9980667), (72, 8871704), (83, 7695936), (93, 6868416), (96, 6653778), (124, 5151312), (144, 4435852), (166, 3847968), (186, 3434208), (192, 3326889), (248, 2575656), (249, 2565312), (279, 2289472), (288, 2217926), (332, 1923984), (372, 1717104), (431, 1482048), (496, 1287828), (498, 1282656), (558, 1144736), (576, 1108963), (664, 961992), (744, 858552), (747, 855104), (862, 741024), (992, 643914), (996, 641328), (1116, 572368), (1293, 494016), (1328, 480996), (1488, 429276), (1494, 427552), (1724, 370512), (1984, 321957), (1992, 320664), (2232, 286184), (2573, 248256), (2586, 247008), (2656, 240498), (2976, 214638), (2988, 213776), (3448, 185256), (3879, 164672), (3984, 160332), (4464, 143092), (5146, 124128), (5172, 123504), (5312, 120249), (5952, 107319), (5976, 106888), (6896, 92628), (7719, 82752), (7758, 82336), (7968, 80166), (8928, 71546), (10292, 62064), (10344, 61752), (11952, 53444), (13361, 47808), (13792, 46314), (15438, 41376), (15516, 41168), (15936, 40083), (17856, 35773), (20584, 31032), (20688, 30876), (23157, 27584), (23904, 26722)]