31382120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{443}}^1$

素因数の和:495

約数の個数: 128

約数和(自身を含む): 92067840

約数和(自身を除く): 60685720

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 23, 28, 35, 40, 44, 46, 55, 56, 70, 77, 88, 92, 110, 115, 140, 154, 161, 184, 220, 230, 253, 280, 308, 322, 385, 440, 443, 460, 506, 616, 644, 770, 805, 886, 920, 1012, 1265, 1288, 1540, 1610, 1771, 1772, 2024, 2215, 2530, 3080, 3101, 3220, 3542, 3544, 4430, 4873, 5060, 6202, 6440, 7084, 8855, 8860, 9746, 10120, 10189, 12404, 14168, 15505, 17710, 17720, 19492, 20378, 24365, 24808, 31010, 34111, 35420, 38984, 40756, 48730, 50945, 62020, 68222, 70840, 71323, 81512, 97460, 101890, 112079, 124040, 136444, 142646, 170555, 194920, 203780, 224158, 272888, 285292, 341110, 356615, 407560, 448316, 560395, 570584, 682220, 713230, 784553, 896632, 1120790, 1364440, 1426460, 1569106, 2241580, 2852920, 3138212, 3922765, 4483160, 6276424, 7845530, 15691060, 31382120]

約数ペア:

[(1, 31382120), (2, 15691060), (4, 7845530), (5, 6276424), (7, 4483160), (8, 3922765), (10, 3138212), (11, 2852920), (14, 2241580), (20, 1569106), (22, 1426460), (23, 1364440), (28, 1120790), (35, 896632), (40, 784553), (44, 713230), (46, 682220), (55, 570584), (56, 560395), (70, 448316), (77, 407560), (88, 356615), (92, 341110), (110, 285292), (115, 272888), (140, 224158), (154, 203780), (161, 194920), (184, 170555), (220, 142646), (230, 136444), (253, 124040), (280, 112079), (308, 101890), (322, 97460), (385, 81512), (440, 71323), (443, 70840), (460, 68222), (506, 62020), (616, 50945), (644, 48730), (770, 40756), (805, 38984), (886, 35420), (920, 34111), (1012, 31010), (1265, 24808), (1288, 24365), (1540, 20378), (1610, 19492), (1771, 17720), (1772, 17710), (2024, 15505), (2215, 14168), (2530, 12404), (3080, 10189), (3101, 10120), (3220, 9746), (3542, 8860), (3544, 8855), (4430, 7084), (4873, 6440), (5060, 6202)]