68320120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:245

約数の個数: 128

約数和(自身を含む): 180195840

約数和(自身を除く): 111875720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 43, 44, 46, 55, 86, 88, 92, 110, 115, 157, 172, 184, 215, 220, 230, 253, 314, 344, 430, 440, 460, 473, 506, 628, 785, 860, 920, 946, 989, 1012, 1256, 1265, 1570, 1720, 1727, 1892, 1978, 2024, 2365, 2530, 3140, 3454, 3611, 3784, 3956, 4730, 4945, 5060, 6280, 6751, 6908, 7222, 7912, 8635, 9460, 9890, 10120, 10879, 13502, 13816, 14444, 17270, 18055, 18920, 19780, 21758, 27004, 28888, 33755, 34540, 36110, 39560, 39721, 43516, 54008, 54395, 67510, 69080, 72220, 74261, 79442, 87032, 108790, 135020, 144440, 148522, 155273, 158884, 198605, 217580, 270040, 297044, 310546, 317768, 371305, 397210, 435160, 594088, 621092, 742610, 776365, 794420, 1242184, 1485220, 1552730, 1588840, 1708003, 2970440, 3105460, 3416006, 6210920, 6832012, 8540015, 13664024, 17080030, 34160060, 68320120]

約数ペア:

[(1, 68320120), (2, 34160060), (4, 17080030), (5, 13664024), (8, 8540015), (10, 6832012), (11, 6210920), (20, 3416006), (22, 3105460), (23, 2970440), (40, 1708003), (43, 1588840), (44, 1552730), (46, 1485220), (55, 1242184), (86, 794420), (88, 776365), (92, 742610), (110, 621092), (115, 594088), (157, 435160), (172, 397210), (184, 371305), (215, 317768), (220, 310546), (230, 297044), (253, 270040), (314, 217580), (344, 198605), (430, 158884), (440, 155273), (460, 148522), (473, 144440), (506, 135020), (628, 108790), (785, 87032), (860, 79442), (920, 74261), (946, 72220), (989, 69080), (1012, 67510), (1256, 54395), (1265, 54008), (1570, 43516), (1720, 39721), (1727, 39560), (1892, 36110), (1978, 34540), (2024, 33755), (2365, 28888), (2530, 27004), (3140, 21758), (3454, 19780), (3611, 18920), (3784, 18055), (3956, 17270), (4730, 14444), (4945, 13816), (5060, 13502), (6280, 10879), (6751, 10120), (6908, 9890), (7222, 9460), (7912, 8635)]