18034840

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:292

約数の個数: 64

約数和(自身を含む): 42456960

約数和(自身を除く): 24422120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 53, 94, 106, 181, 188, 212, 235, 265, 362, 376, 424, 470, 530, 724, 905, 940, 1060, 1448, 1810, 1880, 2120, 2491, 3620, 4982, 7240, 8507, 9593, 9964, 12455, 17014, 19186, 19928, 24910, 34028, 38372, 42535, 47965, 49820, 68056, 76744, 85070, 95930, 99640, 170140, 191860, 340280, 383720, 450871, 901742, 1803484, 2254355, 3606968, 4508710, 9017420, 18034840]

約数ペア:

[(1, 18034840), (2, 9017420), (4, 4508710), (5, 3606968), (8, 2254355), (10, 1803484), (20, 901742), (40, 450871), (47, 383720), (53, 340280), (94, 191860), (106, 170140), (181, 99640), (188, 95930), (212, 85070), (235, 76744), (265, 68056), (362, 49820), (376, 47965), (424, 42535), (470, 38372), (530, 34028), (724, 24910), (905, 19928), (940, 19186), (1060, 17014), (1448, 12455), (1810, 9964), (1880, 9593), (2120, 8507), (2491, 7240), (3620, 4982)]