640284672

素因数分解:

$2^{11}\times 3^1\times {\mathrm{23}}^2\times {\mathrm{197}}^1$

素因数の和:268

約数の個数: 144

約数和(自身を含む): 1793511720

約数和(自身を除く): 1153227048

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 32, 46, 48, 64, 69, 92, 96, 128, 138, 184, 192, 197, 256, 276, 368, 384, 394, 512, 529, 552, 591, 736, 768, 788, 1024, 1058, 1104, 1182, 1472, 1536, 1576, 1587, 2048, 2116, 2208, 2364, 2944, 3072, 3152, 3174, 4232, 4416, 4531, 4728, 5888, 6144, 6304, 6348, 8464, 8832, 9062, 9456, 11776, 12608, 12696, 13593, 16928, 17664, 18124, 18912, 23552, 25216, 25392, 27186, 33856, 35328, 36248, 37824, 47104, 50432, 50784, 54372, 67712, 70656, 72496, 75648, 100864, 101568, 104213, 108744, 135424, 141312, 144992, 151296, 201728, 203136, 208426, 217488, 270848, 289984, 302592, 312639, 403456, 406272, 416852, 434976, 541696, 579968, 605184, 625278, 812544, 833704, 869952, 1083392, 1159936, 1210368, 1250556, 1625088, 1667408, 1739904, 2319872, 2501112, 3250176, 3334816, 3479808, 4639744, 5002224, 6669632, 6959616, 9279488, 10004448, 13339264, 13919232, 20008896, 26678528, 27838464, 40017792, 53357056, 80035584, 106714112, 160071168, 213428224, 320142336, 640284672]

約数ペア:

[(1, 640284672), (2, 320142336), (3, 213428224), (4, 160071168), (6, 106714112), (8, 80035584), (12, 53357056), (16, 40017792), (23, 27838464), (24, 26678528), (32, 20008896), (46, 13919232), (48, 13339264), (64, 10004448), (69, 9279488), (92, 6959616), (96, 6669632), (128, 5002224), (138, 4639744), (184, 3479808), (192, 3334816), (197, 3250176), (256, 2501112), (276, 2319872), (368, 1739904), (384, 1667408), (394, 1625088), (512, 1250556), (529, 1210368), (552, 1159936), (591, 1083392), (736, 869952), (768, 833704), (788, 812544), (1024, 625278), (1058, 605184), (1104, 579968), (1182, 541696), (1472, 434976), (1536, 416852), (1576, 406272), (1587, 403456), (2048, 312639), (2116, 302592), (2208, 289984), (2364, 270848), (2944, 217488), (3072, 208426), (3152, 203136), (3174, 201728), (4232, 151296), (4416, 144992), (4531, 141312), (4728, 135424), (5888, 108744), (6144, 104213), (6304, 101568), (6348, 100864), (8464, 75648), (8832, 72496), (9062, 70656), (9456, 67712), (11776, 54372), (12608, 50784), (12696, 50432), (13593, 47104), (16928, 37824), (17664, 36248), (18124, 35328), (18912, 33856), (23552, 27186), (25216, 25392)]