31797920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:151

約数の個数: 192

約数和(自身を含む): 97977600

約数和(自身を除く): 66179680

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 29, 32, 35, 40, 44, 55, 56, 58, 70, 77, 80, 88, 89, 110, 112, 116, 140, 145, 154, 160, 176, 178, 203, 220, 224, 232, 280, 290, 308, 319, 352, 356, 385, 406, 440, 445, 464, 560, 580, 616, 623, 638, 712, 770, 812, 880, 890, 928, 979, 1015, 1120, 1160, 1232, 1246, 1276, 1424, 1540, 1595, 1624, 1760, 1780, 1958, 2030, 2233, 2320, 2464, 2492, 2552, 2581, 2848, 3080, 3115, 3190, 3248, 3560, 3916, 4060, 4466, 4640, 4895, 4984, 5104, 5162, 6160, 6230, 6380, 6496, 6853, 7120, 7832, 8120, 8932, 9790, 9968, 10208, 10324, 11165, 12320, 12460, 12760, 12905, 13706, 14240, 15664, 16240, 17864, 18067, 19580, 19936, 20648, 22330, 24920, 25520, 25810, 27412, 28391, 31328, 32480, 34265, 35728, 36134, 39160, 41296, 44660, 49840, 51040, 51620, 54824, 56782, 68530, 71456, 72268, 78320, 82592, 89320, 90335, 99680, 103240, 109648, 113564, 137060, 141955, 144536, 156640, 178640, 180670, 198737, 206480, 219296, 227128, 274120, 283910, 289072, 357280, 361340, 397474, 412960, 454256, 548240, 567820, 578144, 722680, 794948, 908512, 993685, 1096480, 1135640, 1445360, 1589896, 1987370, 2271280, 2890720, 3179792, 3974740, 4542560, 6359584, 7949480, 15898960, 31797920]

約数ペア:

[(1, 31797920), (2, 15898960), (4, 7949480), (5, 6359584), (7, 4542560), (8, 3974740), (10, 3179792), (11, 2890720), (14, 2271280), (16, 1987370), (20, 1589896), (22, 1445360), (28, 1135640), (29, 1096480), (32, 993685), (35, 908512), (40, 794948), (44, 722680), (55, 578144), (56, 567820), (58, 548240), (70, 454256), (77, 412960), (80, 397474), (88, 361340), (89, 357280), (110, 289072), (112, 283910), (116, 274120), (140, 227128), (145, 219296), (154, 206480), (160, 198737), (176, 180670), (178, 178640), (203, 156640), (220, 144536), (224, 141955), (232, 137060), (280, 113564), (290, 109648), (308, 103240), (319, 99680), (352, 90335), (356, 89320), (385, 82592), (406, 78320), (440, 72268), (445, 71456), (464, 68530), (560, 56782), (580, 54824), (616, 51620), (623, 51040), (638, 49840), (712, 44660), (770, 41296), (812, 39160), (880, 36134), (890, 35728), (928, 34265), (979, 32480), (1015, 31328), (1120, 28391), (1160, 27412), (1232, 25810), (1246, 25520), (1276, 24920), (1424, 22330), (1540, 20648), (1595, 19936), (1624, 19580), (1760, 18067), (1780, 17864), (1958, 16240), (2030, 15664), (2233, 14240), (2320, 13706), (2464, 12905), (2492, 12760), (2552, 12460), (2581, 12320), (2848, 11165), (3080, 10324), (3115, 10208), (3190, 9968), (3248, 9790), (3560, 8932), (3916, 8120), (4060, 7832), (4466, 7120), (4640, 6853), (4895, 6496), (4984, 6380), (5104, 6230), (5162, 6160)]