31961280

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{197}}^1$

素因数の和:243

約数の個数: 168

約数和(自身を含む): 110441232

約数和(自身を除く): 78479952

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 169, 192, 195, 197, 208, 240, 260, 312, 320, 338, 390, 394, 416, 480, 507, 520, 591, 624, 676, 780, 788, 832, 845, 960, 985, 1014, 1040, 1182, 1248, 1352, 1560, 1576, 1690, 1970, 2028, 2080, 2364, 2496, 2535, 2561, 2704, 2955, 3120, 3152, 3380, 3940, 4056, 4160, 4728, 5070, 5122, 5408, 5910, 6240, 6304, 6760, 7683, 7880, 8112, 9456, 10140, 10244, 10816, 11820, 12480, 12608, 12805, 13520, 15366, 15760, 16224, 18912, 20280, 20488, 23640, 25610, 27040, 30732, 31520, 32448, 33293, 37824, 38415, 40560, 40976, 47280, 51220, 54080, 61464, 63040, 66586, 76830, 81120, 81952, 94560, 99879, 102440, 122928, 133172, 153660, 162240, 163904, 166465, 189120, 199758, 204880, 245856, 266344, 307320, 332930, 399516, 409760, 491712, 499395, 532688, 614640, 665860, 799032, 819520, 998790, 1065376, 1229280, 1331720, 1598064, 1997580, 2130752, 2458560, 2663440, 3196128, 3995160, 5326880, 6392256, 7990320, 10653760, 15980640, 31961280]

約数ペア:

[(1, 31961280), (2, 15980640), (3, 10653760), (4, 7990320), (5, 6392256), (6, 5326880), (8, 3995160), (10, 3196128), (12, 2663440), (13, 2458560), (15, 2130752), (16, 1997580), (20, 1598064), (24, 1331720), (26, 1229280), (30, 1065376), (32, 998790), (39, 819520), (40, 799032), (48, 665860), (52, 614640), (60, 532688), (64, 499395), (65, 491712), (78, 409760), (80, 399516), (96, 332930), (104, 307320), (120, 266344), (130, 245856), (156, 204880), (160, 199758), (169, 189120), (192, 166465), (195, 163904), (197, 162240), (208, 153660), (240, 133172), (260, 122928), (312, 102440), (320, 99879), (338, 94560), (390, 81952), (394, 81120), (416, 76830), (480, 66586), (507, 63040), (520, 61464), (591, 54080), (624, 51220), (676, 47280), (780, 40976), (788, 40560), (832, 38415), (845, 37824), (960, 33293), (985, 32448), (1014, 31520), (1040, 30732), (1182, 27040), (1248, 25610), (1352, 23640), (1560, 20488), (1576, 20280), (1690, 18912), (1970, 16224), (2028, 15760), (2080, 15366), (2364, 13520), (2496, 12805), (2535, 12608), (2561, 12480), (2704, 11820), (2955, 10816), (3120, 10244), (3152, 10140), (3380, 9456), (3940, 8112), (4056, 7880), (4160, 7683), (4728, 6760), (5070, 6304), (5122, 6240), (5408, 5910)]