18444320

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{6781}}^1$

素因数の和:6813

約数の個数: 48

約数和(自身を含む): 46144728

約数和(自身を除く): 27700408

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 6781, 13562, 27124, 33905, 54248, 67810, 108496, 115277, 135620, 216992, 230554, 271240, 461108, 542480, 576385, 922216, 1084960, 1152770, 1844432, 2305540, 3688864, 4611080, 9222160, 18444320]

約数ペア:

[(1, 18444320), (2, 9222160), (4, 4611080), (5, 3688864), (8, 2305540), (10, 1844432), (16, 1152770), (17, 1084960), (20, 922216), (32, 576385), (34, 542480), (40, 461108), (68, 271240), (80, 230554), (85, 216992), (136, 135620), (160, 115277), (170, 108496), (272, 67810), (340, 54248), (544, 33905), (680, 27124), (1360, 13562), (2720, 6781)]