31477880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{389}}^1$

素因数の和:441

約数の個数: 96

約数和(自身を含む): 86205600

約数和(自身を除く): 54727720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 289, 340, 389, 476, 578, 595, 680, 778, 952, 1156, 1190, 1445, 1556, 1945, 2023, 2312, 2380, 2723, 2890, 3112, 3890, 4046, 4760, 5446, 5780, 6613, 7780, 8092, 10115, 10892, 11560, 13226, 13615, 15560, 16184, 20230, 21784, 26452, 27230, 33065, 40460, 46291, 52904, 54460, 66130, 80920, 92582, 108920, 112421, 132260, 185164, 224842, 231455, 264520, 370328, 449684, 462910, 562105, 786947, 899368, 925820, 1124210, 1573894, 1851640, 2248420, 3147788, 3934735, 4496840, 6295576, 7869470, 15738940, 31477880]

約数ペア:

[(1, 31477880), (2, 15738940), (4, 7869470), (5, 6295576), (7, 4496840), (8, 3934735), (10, 3147788), (14, 2248420), (17, 1851640), (20, 1573894), (28, 1124210), (34, 925820), (35, 899368), (40, 786947), (56, 562105), (68, 462910), (70, 449684), (85, 370328), (119, 264520), (136, 231455), (140, 224842), (170, 185164), (238, 132260), (280, 112421), (289, 108920), (340, 92582), (389, 80920), (476, 66130), (578, 54460), (595, 52904), (680, 46291), (778, 40460), (952, 33065), (1156, 27230), (1190, 26452), (1445, 21784), (1556, 20230), (1945, 16184), (2023, 15560), (2312, 13615), (2380, 13226), (2723, 11560), (2890, 10892), (3112, 10115), (3890, 8092), (4046, 7780), (4760, 6613), (5446, 5780)]