123912040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1$

素因数の和:383

約数の個数: 128

約数和(自身を含む): 338411520

約数和(自身を除く): 214499480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 71, 92, 115, 140, 142, 161, 184, 230, 271, 280, 284, 322, 355, 460, 497, 542, 568, 644, 710, 805, 920, 994, 1084, 1288, 1355, 1420, 1610, 1633, 1897, 1988, 2168, 2485, 2710, 2840, 3220, 3266, 3794, 3976, 4970, 5420, 6233, 6440, 6532, 7588, 8165, 9485, 9940, 10840, 11431, 12466, 13064, 15176, 16330, 18970, 19241, 19880, 22862, 24932, 31165, 32660, 37940, 38482, 43631, 45724, 49864, 57155, 62330, 65320, 75880, 76964, 87262, 91448, 96205, 114310, 124660, 134687, 153928, 174524, 192410, 218155, 228620, 249320, 269374, 349048, 384820, 436310, 442543, 457240, 538748, 673435, 769640, 872620, 885086, 1077496, 1346870, 1745240, 1770172, 2212715, 2693740, 3097801, 3540344, 4425430, 5387480, 6195602, 8850860, 12391204, 15489005, 17701720, 24782408, 30978010, 61956020, 123912040]

約数ペア:

[(1, 123912040), (2, 61956020), (4, 30978010), (5, 24782408), (7, 17701720), (8, 15489005), (10, 12391204), (14, 8850860), (20, 6195602), (23, 5387480), (28, 4425430), (35, 3540344), (40, 3097801), (46, 2693740), (56, 2212715), (70, 1770172), (71, 1745240), (92, 1346870), (115, 1077496), (140, 885086), (142, 872620), (161, 769640), (184, 673435), (230, 538748), (271, 457240), (280, 442543), (284, 436310), (322, 384820), (355, 349048), (460, 269374), (497, 249320), (542, 228620), (568, 218155), (644, 192410), (710, 174524), (805, 153928), (920, 134687), (994, 124660), (1084, 114310), (1288, 96205), (1355, 91448), (1420, 87262), (1610, 76964), (1633, 75880), (1897, 65320), (1988, 62330), (2168, 57155), (2485, 49864), (2710, 45724), (2840, 43631), (3220, 38482), (3266, 37940), (3794, 32660), (3976, 31165), (4970, 24932), (5420, 22862), (6233, 19880), (6440, 19241), (6532, 18970), (7588, 16330), (8165, 15176), (9485, 13064), (9940, 12466), (10840, 11431)]