42120320

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:254

約数の個数: 128

約数和(自身を含む): 113978880

約数和(自身を除く): 71858560

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 110, 124, 128, 155, 160, 176, 193, 220, 248, 310, 320, 341, 352, 386, 440, 496, 620, 640, 682, 704, 772, 880, 965, 992, 1240, 1364, 1408, 1544, 1705, 1760, 1930, 1984, 2123, 2480, 2728, 3088, 3410, 3520, 3860, 3968, 4246, 4960, 5456, 5983, 6176, 6820, 7040, 7720, 8492, 9920, 10615, 10912, 11966, 12352, 13640, 15440, 16984, 19840, 21230, 21824, 23932, 24704, 27280, 29915, 30880, 33968, 42460, 43648, 47864, 54560, 59830, 61760, 65813, 67936, 84920, 95728, 109120, 119660, 123520, 131626, 135872, 169840, 191456, 218240, 239320, 263252, 271744, 329065, 339680, 382912, 478640, 526504, 658130, 679360, 765824, 957280, 1053008, 1316260, 1358720, 1914560, 2106016, 2632520, 3829120, 4212032, 5265040, 8424064, 10530080, 21060160, 42120320]

約数ペア:

[(1, 42120320), (2, 21060160), (4, 10530080), (5, 8424064), (8, 5265040), (10, 4212032), (11, 3829120), (16, 2632520), (20, 2106016), (22, 1914560), (31, 1358720), (32, 1316260), (40, 1053008), (44, 957280), (55, 765824), (62, 679360), (64, 658130), (80, 526504), (88, 478640), (110, 382912), (124, 339680), (128, 329065), (155, 271744), (160, 263252), (176, 239320), (193, 218240), (220, 191456), (248, 169840), (310, 135872), (320, 131626), (341, 123520), (352, 119660), (386, 109120), (440, 95728), (496, 84920), (620, 67936), (640, 65813), (682, 61760), (704, 59830), (772, 54560), (880, 47864), (965, 43648), (992, 42460), (1240, 33968), (1364, 30880), (1408, 29915), (1544, 27280), (1705, 24704), (1760, 23932), (1930, 21824), (1984, 21230), (2123, 19840), (2480, 16984), (2728, 15440), (3088, 13640), (3410, 12352), (3520, 11966), (3860, 10912), (3968, 10615), (4246, 9920), (4960, 8492), (5456, 7720), (5983, 7040), (6176, 6820)]