261435648

素因数分解:

$2^8\times 3^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:268

約数の個数: 144

約数和(自身を含む): 732569600

約数和(自身を除く): 471133952

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 32, 48, 62, 64, 79, 93, 96, 124, 128, 139, 158, 186, 192, 237, 248, 256, 278, 316, 372, 384, 417, 474, 496, 556, 632, 744, 768, 834, 948, 992, 1112, 1264, 1488, 1668, 1896, 1984, 2224, 2449, 2528, 2976, 3336, 3792, 3968, 4309, 4448, 4898, 5056, 5952, 6672, 7347, 7584, 7936, 8618, 8896, 9796, 10112, 10981, 11904, 12927, 13344, 14694, 15168, 17236, 17792, 19592, 20224, 21962, 23808, 25854, 26688, 29388, 30336, 32943, 34472, 35584, 39184, 43924, 51708, 53376, 58776, 60672, 65886, 68944, 78368, 87848, 103416, 106752, 117552, 131772, 137888, 156736, 175696, 206832, 235104, 263544, 275776, 313472, 340411, 351392, 413664, 470208, 527088, 551552, 626944, 680822, 702784, 827328, 940416, 1021233, 1054176, 1103104, 1361644, 1405568, 1654656, 1880832, 2042466, 2108352, 2723288, 2811136, 3309312, 4084932, 4216704, 5446576, 8169864, 8433408, 10893152, 16339728, 21786304, 32679456, 43572608, 65358912, 87145216, 130717824, 261435648]

約数ペア:

[(1, 261435648), (2, 130717824), (3, 87145216), (4, 65358912), (6, 43572608), (8, 32679456), (12, 21786304), (16, 16339728), (24, 10893152), (31, 8433408), (32, 8169864), (48, 5446576), (62, 4216704), (64, 4084932), (79, 3309312), (93, 2811136), (96, 2723288), (124, 2108352), (128, 2042466), (139, 1880832), (158, 1654656), (186, 1405568), (192, 1361644), (237, 1103104), (248, 1054176), (256, 1021233), (278, 940416), (316, 827328), (372, 702784), (384, 680822), (417, 626944), (474, 551552), (496, 527088), (556, 470208), (632, 413664), (744, 351392), (768, 340411), (834, 313472), (948, 275776), (992, 263544), (1112, 235104), (1264, 206832), (1488, 175696), (1668, 156736), (1896, 137888), (1984, 131772), (2224, 117552), (2449, 106752), (2528, 103416), (2976, 87848), (3336, 78368), (3792, 68944), (3968, 65886), (4309, 60672), (4448, 58776), (4898, 53376), (5056, 51708), (5952, 43924), (6672, 39184), (7347, 35584), (7584, 34472), (7936, 32943), (8618, 30336), (8896, 29388), (9796, 26688), (10112, 25854), (10981, 23808), (11904, 21962), (12927, 20224), (13344, 19592), (14694, 17792), (15168, 17236)]