205105920

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1723}}^1$

素因数の和:1778

約数の個数: 144

約数和(自身を含む): 676580352

約数和(自身を除く): 471474432

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 256, 310, 320, 372, 384, 465, 480, 496, 620, 640, 744, 768, 930, 960, 992, 1240, 1280, 1488, 1723, 1860, 1920, 1984, 2480, 2976, 3446, 3720, 3840, 3968, 4960, 5169, 5952, 6892, 7440, 7936, 8615, 9920, 10338, 11904, 13784, 14880, 17230, 19840, 20676, 23808, 25845, 27568, 29760, 34460, 39680, 41352, 51690, 53413, 55136, 59520, 68920, 82704, 103380, 106826, 110272, 119040, 137840, 160239, 165408, 206760, 213652, 220544, 267065, 275680, 320478, 330816, 413520, 427304, 441088, 534130, 551360, 640956, 661632, 801195, 827040, 854608, 1068260, 1102720, 1281912, 1323264, 1602390, 1654080, 1709216, 2136520, 2205440, 2563824, 3204780, 3308160, 3418432, 4273040, 5127648, 6409560, 6616320, 6836864, 8546080, 10255296, 12819120, 13673728, 17092160, 20510592, 25638240, 34184320, 41021184, 51276480, 68368640, 102552960, 205105920]

約数ペア:

[(1, 205105920), (2, 102552960), (3, 68368640), (4, 51276480), (5, 41021184), (6, 34184320), (8, 25638240), (10, 20510592), (12, 17092160), (15, 13673728), (16, 12819120), (20, 10255296), (24, 8546080), (30, 6836864), (31, 6616320), (32, 6409560), (40, 5127648), (48, 4273040), (60, 3418432), (62, 3308160), (64, 3204780), (80, 2563824), (93, 2205440), (96, 2136520), (120, 1709216), (124, 1654080), (128, 1602390), (155, 1323264), (160, 1281912), (186, 1102720), (192, 1068260), (240, 854608), (248, 827040), (256, 801195), (310, 661632), (320, 640956), (372, 551360), (384, 534130), (465, 441088), (480, 427304), (496, 413520), (620, 330816), (640, 320478), (744, 275680), (768, 267065), (930, 220544), (960, 213652), (992, 206760), (1240, 165408), (1280, 160239), (1488, 137840), (1723, 119040), (1860, 110272), (1920, 106826), (1984, 103380), (2480, 82704), (2976, 68920), (3446, 59520), (3720, 55136), (3840, 53413), (3968, 51690), (4960, 41352), (5169, 39680), (5952, 34460), (6892, 29760), (7440, 27568), (7936, 25845), (8615, 23808), (9920, 20676), (10338, 19840), (11904, 17230), (13784, 14880)]