72351440

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{18457}}^1$

素因数の和:18484

約数の個数: 60

約数和(自身を含む): 195691716

約数和(自身を除く): 123340276

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 18457, 36914, 73828, 92285, 129199, 147656, 184570, 258398, 295312, 369140, 516796, 645995, 738280, 904393, 1033592, 1291990, 1476560, 1808786, 2067184, 2583980, 3617572, 4521965, 5167960, 7235144, 9043930, 10335920, 14470288, 18087860, 36175720, 72351440]

約数ペア:

[(1, 72351440), (2, 36175720), (4, 18087860), (5, 14470288), (7, 10335920), (8, 9043930), (10, 7235144), (14, 5167960), (16, 4521965), (20, 3617572), (28, 2583980), (35, 2067184), (40, 1808786), (49, 1476560), (56, 1291990), (70, 1033592), (80, 904393), (98, 738280), (112, 645995), (140, 516796), (196, 369140), (245, 295312), (280, 258398), (392, 184570), (490, 147656), (560, 129199), (784, 92285), (980, 73828), (1960, 36914), (3920, 18457)]