640271616

素因数分解:

$2^8\times 3^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1$

素因数の和:332

約数の個数: 144

約数和(自身を含む): 1764053760

約数和(自身を除く): 1123782144

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 61, 64, 79, 96, 122, 128, 158, 173, 183, 192, 237, 244, 256, 316, 346, 366, 384, 474, 488, 519, 632, 692, 732, 768, 948, 976, 1038, 1264, 1384, 1464, 1896, 1952, 2076, 2528, 2768, 2928, 3792, 3904, 4152, 4819, 5056, 5536, 5856, 7584, 7808, 8304, 9638, 10112, 10553, 11072, 11712, 13667, 14457, 15168, 15616, 16608, 19276, 20224, 21106, 22144, 23424, 27334, 28914, 30336, 31659, 33216, 38552, 41001, 42212, 44288, 46848, 54668, 57828, 60672, 63318, 66432, 77104, 82002, 84424, 109336, 115656, 126636, 132864, 154208, 164004, 168848, 218672, 231312, 253272, 308416, 328008, 337696, 437344, 462624, 506544, 616832, 656016, 675392, 833687, 874688, 925248, 1013088, 1233664, 1312032, 1350784, 1667374, 1749376, 1850496, 2026176, 2501061, 2624064, 2701568, 3334748, 3498752, 3700992, 4052352, 5002122, 5248128, 6669496, 8104704, 10004244, 10496256, 13338992, 20008488, 26677984, 40016976, 53355968, 80033952, 106711936, 160067904, 213423872, 320135808, 640271616]

約数ペア:

[(1, 640271616), (2, 320135808), (3, 213423872), (4, 160067904), (6, 106711936), (8, 80033952), (12, 53355968), (16, 40016976), (24, 26677984), (32, 20008488), (48, 13338992), (61, 10496256), (64, 10004244), (79, 8104704), (96, 6669496), (122, 5248128), (128, 5002122), (158, 4052352), (173, 3700992), (183, 3498752), (192, 3334748), (237, 2701568), (244, 2624064), (256, 2501061), (316, 2026176), (346, 1850496), (366, 1749376), (384, 1667374), (474, 1350784), (488, 1312032), (519, 1233664), (632, 1013088), (692, 925248), (732, 874688), (768, 833687), (948, 675392), (976, 656016), (1038, 616832), (1264, 506544), (1384, 462624), (1464, 437344), (1896, 337696), (1952, 328008), (2076, 308416), (2528, 253272), (2768, 231312), (2928, 218672), (3792, 168848), (3904, 164004), (4152, 154208), (4819, 132864), (5056, 126636), (5536, 115656), (5856, 109336), (7584, 84424), (7808, 82002), (8304, 77104), (9638, 66432), (10112, 63318), (10553, 60672), (11072, 57828), (11712, 54668), (13667, 46848), (14457, 44288), (15168, 42212), (15616, 41001), (16608, 38552), (19276, 33216), (20224, 31659), (21106, 30336), (22144, 28914), (23424, 27334)]