156993920

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:284

約数の個数: 128

約数和(自身を含む): 398926080

約数和(自身を除く): 241932160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 62, 64, 80, 82, 124, 128, 155, 160, 164, 193, 205, 248, 310, 320, 328, 386, 410, 496, 620, 640, 656, 772, 820, 965, 992, 1240, 1271, 1312, 1544, 1640, 1930, 1984, 2480, 2542, 2624, 3088, 3280, 3860, 3968, 4960, 5084, 5248, 5983, 6176, 6355, 6560, 7720, 7913, 9920, 10168, 11966, 12352, 12710, 13120, 15440, 15826, 19840, 20336, 23932, 24704, 25420, 26240, 29915, 30880, 31652, 39565, 40672, 47864, 50840, 59830, 61760, 63304, 79130, 81344, 95728, 101680, 119660, 123520, 126608, 158260, 162688, 191456, 203360, 239320, 245303, 253216, 316520, 382912, 406720, 478640, 490606, 506432, 633040, 765824, 813440, 957280, 981212, 1012864, 1226515, 1266080, 1914560, 1962424, 2453030, 2532160, 3829120, 3924848, 4906060, 5064320, 7849696, 9812120, 15699392, 19624240, 31398784, 39248480, 78496960, 156993920]

約数ペア:

[(1, 156993920), (2, 78496960), (4, 39248480), (5, 31398784), (8, 19624240), (10, 15699392), (16, 9812120), (20, 7849696), (31, 5064320), (32, 4906060), (40, 3924848), (41, 3829120), (62, 2532160), (64, 2453030), (80, 1962424), (82, 1914560), (124, 1266080), (128, 1226515), (155, 1012864), (160, 981212), (164, 957280), (193, 813440), (205, 765824), (248, 633040), (310, 506432), (320, 490606), (328, 478640), (386, 406720), (410, 382912), (496, 316520), (620, 253216), (640, 245303), (656, 239320), (772, 203360), (820, 191456), (965, 162688), (992, 158260), (1240, 126608), (1271, 123520), (1312, 119660), (1544, 101680), (1640, 95728), (1930, 81344), (1984, 79130), (2480, 63304), (2542, 61760), (2624, 59830), (3088, 50840), (3280, 47864), (3860, 40672), (3968, 39565), (4960, 31652), (5084, 30880), (5248, 29915), (5983, 26240), (6176, 25420), (6355, 24704), (6560, 23932), (7720, 20336), (7913, 19840), (9920, 15826), (10168, 15440), (11966, 13120), (12352, 12710)]