31139920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3271}}^1$

素因数の和:3308

約数の個数: 80

約数和(自身を含む): 87637248

約数和(自身を除く): 56497328

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 170, 238, 272, 280, 340, 476, 560, 595, 680, 952, 1190, 1360, 1904, 2380, 3271, 4760, 6542, 9520, 13084, 16355, 22897, 26168, 32710, 45794, 52336, 55607, 65420, 91588, 111214, 114485, 130840, 183176, 222428, 228970, 261680, 278035, 366352, 389249, 444856, 457940, 556070, 778498, 889712, 915880, 1112140, 1556996, 1831760, 1946245, 2224280, 3113992, 3892490, 4448560, 6227984, 7784980, 15569960, 31139920]

約数ペア:

[(1, 31139920), (2, 15569960), (4, 7784980), (5, 6227984), (7, 4448560), (8, 3892490), (10, 3113992), (14, 2224280), (16, 1946245), (17, 1831760), (20, 1556996), (28, 1112140), (34, 915880), (35, 889712), (40, 778498), (56, 556070), (68, 457940), (70, 444856), (80, 389249), (85, 366352), (112, 278035), (119, 261680), (136, 228970), (140, 222428), (170, 183176), (238, 130840), (272, 114485), (280, 111214), (340, 91588), (476, 65420), (560, 55607), (595, 52336), (680, 45794), (952, 32710), (1190, 26168), (1360, 22897), (1904, 16355), (2380, 13084), (3271, 9520), (4760, 6542)]