20674240

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^2$

素因数の和:146

約数の個数: 84

約数和(自身を含む): 52358544

約数和(自身を除く): 31684304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 53, 64, 80, 92, 106, 115, 160, 184, 212, 230, 265, 320, 368, 424, 460, 530, 736, 848, 920, 1060, 1219, 1472, 1696, 1840, 2120, 2438, 2809, 3392, 3680, 4240, 4876, 5618, 6095, 7360, 8480, 9752, 11236, 12190, 14045, 16960, 19504, 22472, 24380, 28090, 39008, 44944, 48760, 56180, 64607, 78016, 89888, 97520, 112360, 129214, 179776, 195040, 224720, 258428, 323035, 390080, 449440, 516856, 646070, 898880, 1033712, 1292140, 2067424, 2584280, 4134848, 5168560, 10337120, 20674240]

約数ペア:

[(1, 20674240), (2, 10337120), (4, 5168560), (5, 4134848), (8, 2584280), (10, 2067424), (16, 1292140), (20, 1033712), (23, 898880), (32, 646070), (40, 516856), (46, 449440), (53, 390080), (64, 323035), (80, 258428), (92, 224720), (106, 195040), (115, 179776), (160, 129214), (184, 112360), (212, 97520), (230, 89888), (265, 78016), (320, 64607), (368, 56180), (424, 48760), (460, 44944), (530, 39008), (736, 28090), (848, 24380), (920, 22472), (1060, 19504), (1219, 16960), (1472, 14045), (1696, 12190), (1840, 11236), (2120, 9752), (2438, 8480), (2809, 7360), (3392, 6095), (3680, 5618), (4240, 4876)]