31512120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:285

約数の個数: 128

約数和(自身を含む): 100362240

約数和(自身を除く): 68850120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 43, 60, 62, 86, 93, 120, 124, 129, 155, 172, 186, 197, 215, 248, 258, 310, 344, 372, 394, 430, 465, 516, 591, 620, 645, 744, 788, 860, 930, 985, 1032, 1182, 1240, 1290, 1333, 1576, 1720, 1860, 1970, 2364, 2580, 2666, 2955, 3720, 3940, 3999, 4728, 5160, 5332, 5910, 6107, 6665, 7880, 7998, 8471, 10664, 11820, 12214, 13330, 15996, 16942, 18321, 19995, 23640, 24428, 25413, 26660, 30535, 31992, 33884, 36642, 39990, 42355, 48856, 50826, 53320, 61070, 67768, 73284, 79980, 84710, 91605, 101652, 122140, 127065, 146568, 159960, 169420, 183210, 203304, 244280, 254130, 262601, 338840, 366420, 508260, 525202, 732840, 787803, 1016520, 1050404, 1313005, 1575606, 2100808, 2626010, 3151212, 3939015, 5252020, 6302424, 7878030, 10504040, 15756060, 31512120]

約数ペア:

[(1, 31512120), (2, 15756060), (3, 10504040), (4, 7878030), (5, 6302424), (6, 5252020), (8, 3939015), (10, 3151212), (12, 2626010), (15, 2100808), (20, 1575606), (24, 1313005), (30, 1050404), (31, 1016520), (40, 787803), (43, 732840), (60, 525202), (62, 508260), (86, 366420), (93, 338840), (120, 262601), (124, 254130), (129, 244280), (155, 203304), (172, 183210), (186, 169420), (197, 159960), (215, 146568), (248, 127065), (258, 122140), (310, 101652), (344, 91605), (372, 84710), (394, 79980), (430, 73284), (465, 67768), (516, 61070), (591, 53320), (620, 50826), (645, 48856), (744, 42355), (788, 39990), (860, 36642), (930, 33884), (985, 31992), (1032, 30535), (1182, 26660), (1240, 25413), (1290, 24428), (1333, 23640), (1576, 19995), (1720, 18321), (1860, 16942), (1970, 15996), (2364, 13330), (2580, 12214), (2666, 11820), (2955, 10664), (3720, 8471), (3940, 7998), (3999, 7880), (4728, 6665), (5160, 6107), (5332, 5910)]