31505320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1$

素因数の和:275

約数の個数: 128

約数和(自身を含む): 90512640

約数和(自身を除く): 59007320

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 53, 55, 56, 70, 77, 88, 106, 110, 140, 154, 193, 212, 220, 265, 280, 308, 371, 385, 386, 424, 440, 530, 583, 616, 742, 770, 772, 965, 1060, 1166, 1351, 1484, 1540, 1544, 1855, 1930, 2120, 2123, 2332, 2702, 2915, 2968, 3080, 3710, 3860, 4081, 4246, 4664, 5404, 5830, 6755, 7420, 7720, 8162, 8492, 10229, 10615, 10808, 11660, 13510, 14840, 14861, 16324, 16984, 20405, 20458, 21230, 23320, 27020, 29722, 32648, 40810, 40916, 42460, 51145, 54040, 59444, 71603, 74305, 81620, 81832, 84920, 102290, 112519, 118888, 143206, 148610, 163240, 204580, 225038, 286412, 297220, 358015, 409160, 450076, 562595, 572824, 594440, 716030, 787633, 900152, 1125190, 1432060, 1575266, 2250380, 2864120, 3150532, 3938165, 4500760, 6301064, 7876330, 15752660, 31505320]

約数ペア:

[(1, 31505320), (2, 15752660), (4, 7876330), (5, 6301064), (7, 4500760), (8, 3938165), (10, 3150532), (11, 2864120), (14, 2250380), (20, 1575266), (22, 1432060), (28, 1125190), (35, 900152), (40, 787633), (44, 716030), (53, 594440), (55, 572824), (56, 562595), (70, 450076), (77, 409160), (88, 358015), (106, 297220), (110, 286412), (140, 225038), (154, 204580), (193, 163240), (212, 148610), (220, 143206), (265, 118888), (280, 112519), (308, 102290), (371, 84920), (385, 81832), (386, 81620), (424, 74305), (440, 71603), (530, 59444), (583, 54040), (616, 51145), (742, 42460), (770, 40916), (772, 40810), (965, 32648), (1060, 29722), (1166, 27020), (1351, 23320), (1484, 21230), (1540, 20458), (1544, 20405), (1855, 16984), (1930, 16324), (2120, 14861), (2123, 14840), (2332, 13510), (2702, 11660), (2915, 10808), (2968, 10615), (3080, 10229), (3710, 8492), (3860, 8162), (4081, 7720), (4246, 7420), (4664, 6755), (5404, 5830)]