28399290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:347

約数の個数: 64

約数和(自身を含む): 70502400

約数和(自身を除く): 42103110

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 67, 71, 134, 142, 199, 201, 213, 335, 355, 398, 402, 426, 597, 670, 710, 995, 1005, 1065, 1194, 1990, 2010, 2130, 2985, 4757, 5970, 9514, 13333, 14129, 14271, 23785, 26666, 28258, 28542, 39999, 42387, 47570, 66665, 70645, 71355, 79998, 84774, 133330, 141290, 142710, 199995, 211935, 399990, 423870, 946643, 1893286, 2839929, 4733215, 5679858, 9466430, 14199645, 28399290]

約数ペア:

[(1, 28399290), (2, 14199645), (3, 9466430), (5, 5679858), (6, 4733215), (10, 2839929), (15, 1893286), (30, 946643), (67, 423870), (71, 399990), (134, 211935), (142, 199995), (199, 142710), (201, 141290), (213, 133330), (335, 84774), (355, 79998), (398, 71355), (402, 70645), (426, 66665), (597, 47570), (670, 42387), (710, 39999), (995, 28542), (1005, 28258), (1065, 26666), (1194, 23785), (1990, 14271), (2010, 14129), (2130, 13333), (2985, 9514), (4757, 5970)]