31512560

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:123

約数の個数: 120

約数和(自身を含む): 82226880

約数和(自身を除く): 50714320

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 34, 40, 47, 58, 68, 80, 85, 94, 116, 136, 145, 170, 188, 232, 235, 272, 289, 290, 340, 376, 464, 470, 493, 578, 580, 680, 752, 799, 940, 986, 1156, 1160, 1360, 1363, 1445, 1598, 1880, 1972, 2312, 2320, 2465, 2726, 2890, 3196, 3760, 3944, 3995, 4624, 4930, 5452, 5780, 6392, 6815, 7888, 7990, 8381, 9860, 10904, 11560, 12784, 13583, 13630, 15980, 16762, 19720, 21808, 23120, 23171, 27166, 27260, 31960, 33524, 39440, 41905, 46342, 54332, 54520, 63920, 67048, 67915, 83810, 92684, 108664, 109040, 115855, 134096, 135830, 167620, 185368, 217328, 231710, 271660, 335240, 370736, 393907, 463420, 543320, 670480, 787814, 926840, 1086640, 1575628, 1853680, 1969535, 3151256, 3939070, 6302512, 7878140, 15756280, 31512560]

約数ペア:

[(1, 31512560), (2, 15756280), (4, 7878140), (5, 6302512), (8, 3939070), (10, 3151256), (16, 1969535), (17, 1853680), (20, 1575628), (29, 1086640), (34, 926840), (40, 787814), (47, 670480), (58, 543320), (68, 463420), (80, 393907), (85, 370736), (94, 335240), (116, 271660), (136, 231710), (145, 217328), (170, 185368), (188, 167620), (232, 135830), (235, 134096), (272, 115855), (289, 109040), (290, 108664), (340, 92684), (376, 83810), (464, 67915), (470, 67048), (493, 63920), (578, 54520), (580, 54332), (680, 46342), (752, 41905), (799, 39440), (940, 33524), (986, 31960), (1156, 27260), (1160, 27166), (1360, 23171), (1363, 23120), (1445, 21808), (1598, 19720), (1880, 16762), (1972, 15980), (2312, 13630), (2320, 13583), (2465, 12784), (2726, 11560), (2890, 10904), (3196, 9860), (3760, 8381), (3944, 7990), (3995, 7888), (4624, 6815), (4930, 6392), (5452, 5780)]