12921400

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{53}}^2$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 31951080

約数和(自身を除く): 19029680

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 53, 92, 100, 106, 115, 184, 200, 212, 230, 265, 424, 460, 530, 575, 920, 1060, 1150, 1219, 1325, 2120, 2300, 2438, 2650, 2809, 4600, 4876, 5300, 5618, 6095, 9752, 10600, 11236, 12190, 14045, 22472, 24380, 28090, 30475, 48760, 56180, 60950, 64607, 70225, 112360, 121900, 129214, 140450, 243800, 258428, 280900, 323035, 516856, 561800, 646070, 1292140, 1615175, 2584280, 3230350, 6460700, 12921400]

約数ペア:

[(1, 12921400), (2, 6460700), (4, 3230350), (5, 2584280), (8, 1615175), (10, 1292140), (20, 646070), (23, 561800), (25, 516856), (40, 323035), (46, 280900), (50, 258428), (53, 243800), (92, 140450), (100, 129214), (106, 121900), (115, 112360), (184, 70225), (200, 64607), (212, 60950), (230, 56180), (265, 48760), (424, 30475), (460, 28090), (530, 24380), (575, 22472), (920, 14045), (1060, 12190), (1150, 11236), (1219, 10600), (1325, 9752), (2120, 6095), (2300, 5618), (2438, 5300), (2650, 4876), (2809, 4600)]