18715560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{6781}}^1$

素因数の和:6818

約数の個数: 64

約数和(自身を含む): 58596480

約数和(自身を除く): 39880920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 6781, 13562, 20343, 27124, 33905, 40686, 54248, 67810, 81372, 101715, 135620, 155963, 162744, 203430, 271240, 311926, 406860, 467889, 623852, 779815, 813720, 935778, 1247704, 1559630, 1871556, 2339445, 3119260, 3743112, 4678890, 6238520, 9357780, 18715560]

約数ペア:

[(1, 18715560), (2, 9357780), (3, 6238520), (4, 4678890), (5, 3743112), (6, 3119260), (8, 2339445), (10, 1871556), (12, 1559630), (15, 1247704), (20, 935778), (23, 813720), (24, 779815), (30, 623852), (40, 467889), (46, 406860), (60, 311926), (69, 271240), (92, 203430), (115, 162744), (120, 155963), (138, 135620), (184, 101715), (230, 81372), (276, 67810), (345, 54248), (460, 40686), (552, 33905), (690, 27124), (920, 20343), (1380, 13562), (2760, 6781)]