313021880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:261

約数の個数: 128

約数和(自身を含む): 766402560

約数和(自身を除く): 453380680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 41, 47, 62, 82, 94, 124, 131, 155, 164, 188, 205, 235, 248, 262, 310, 328, 376, 410, 470, 524, 620, 655, 820, 940, 1048, 1240, 1271, 1310, 1457, 1640, 1880, 1927, 2542, 2620, 2914, 3854, 4061, 5084, 5240, 5371, 5828, 6157, 6355, 7285, 7708, 8122, 9635, 10168, 10742, 11656, 12314, 12710, 14570, 15416, 16244, 19270, 20305, 21484, 24628, 25420, 26855, 29140, 30785, 32488, 38540, 40610, 42968, 49256, 50840, 53710, 58280, 59737, 61570, 77080, 81220, 107420, 119474, 123140, 162440, 166501, 190867, 214840, 238948, 246280, 252437, 298685, 333002, 381734, 477896, 504874, 597370, 666004, 763468, 832505, 954335, 1009748, 1194740, 1262185, 1332008, 1526936, 1665010, 1908670, 2019496, 2389480, 2524370, 3330020, 3817340, 5048740, 6660040, 7634680, 7825547, 10097480, 15651094, 31302188, 39127735, 62604376, 78255470, 156510940, 313021880]

約数ペア:

[(1, 313021880), (2, 156510940), (4, 78255470), (5, 62604376), (8, 39127735), (10, 31302188), (20, 15651094), (31, 10097480), (40, 7825547), (41, 7634680), (47, 6660040), (62, 5048740), (82, 3817340), (94, 3330020), (124, 2524370), (131, 2389480), (155, 2019496), (164, 1908670), (188, 1665010), (205, 1526936), (235, 1332008), (248, 1262185), (262, 1194740), (310, 1009748), (328, 954335), (376, 832505), (410, 763468), (470, 666004), (524, 597370), (620, 504874), (655, 477896), (820, 381734), (940, 333002), (1048, 298685), (1240, 252437), (1271, 246280), (1310, 238948), (1457, 214840), (1640, 190867), (1880, 166501), (1927, 162440), (2542, 123140), (2620, 119474), (2914, 107420), (3854, 81220), (4061, 77080), (5084, 61570), (5240, 59737), (5371, 58280), (5828, 53710), (6157, 50840), (6355, 49256), (7285, 42968), (7708, 40610), (8122, 38540), (9635, 32488), (10168, 30785), (10742, 29140), (11656, 26855), (12314, 25420), (12710, 24628), (14570, 21484), (15416, 20305), (16244, 19270)]