31444280

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:349

約数の個数: 96

約数和(自身を含む): 83967840

約数和(自身を除く): 52523560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 61, 70, 98, 122, 140, 196, 244, 245, 263, 280, 305, 392, 427, 488, 490, 526, 610, 854, 980, 1052, 1220, 1315, 1708, 1841, 1960, 2104, 2135, 2440, 2630, 2989, 3416, 3682, 4270, 5260, 5978, 7364, 8540, 9205, 10520, 11956, 12887, 14728, 14945, 16043, 17080, 18410, 23912, 25774, 29890, 32086, 36820, 51548, 59780, 64172, 64435, 73640, 80215, 103096, 112301, 119560, 128344, 128870, 160430, 224602, 257740, 320860, 449204, 515480, 561505, 641720, 786107, 898408, 1123010, 1572214, 2246020, 3144428, 3930535, 4492040, 6288856, 7861070, 15722140, 31444280]

約数ペア:

[(1, 31444280), (2, 15722140), (4, 7861070), (5, 6288856), (7, 4492040), (8, 3930535), (10, 3144428), (14, 2246020), (20, 1572214), (28, 1123010), (35, 898408), (40, 786107), (49, 641720), (56, 561505), (61, 515480), (70, 449204), (98, 320860), (122, 257740), (140, 224602), (196, 160430), (244, 128870), (245, 128344), (263, 119560), (280, 112301), (305, 103096), (392, 80215), (427, 73640), (488, 64435), (490, 64172), (526, 59780), (610, 51548), (854, 36820), (980, 32086), (1052, 29890), (1220, 25774), (1315, 23912), (1708, 18410), (1841, 17080), (1960, 16043), (2104, 14945), (2135, 14728), (2440, 12887), (2630, 11956), (2989, 10520), (3416, 9205), (3682, 8540), (4270, 7364), (5260, 5978)]