438604940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{20287}}^1$

素因数の和:20366

約数の個数: 48

約数和(自身を含む): 981614592

約数和(自身を除く): 543009652

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 47, 92, 94, 115, 188, 230, 235, 460, 470, 940, 1081, 2162, 4324, 5405, 10810, 20287, 21620, 40574, 81148, 101435, 202870, 405740, 466601, 933202, 953489, 1866404, 1906978, 2333005, 3813956, 4666010, 4767445, 9332020, 9534890, 19069780, 21930247, 43860494, 87720988, 109651235, 219302470, 438604940]

約数ペア:

[(1, 438604940), (2, 219302470), (4, 109651235), (5, 87720988), (10, 43860494), (20, 21930247), (23, 19069780), (46, 9534890), (47, 9332020), (92, 4767445), (94, 4666010), (115, 3813956), (188, 2333005), (230, 1906978), (235, 1866404), (460, 953489), (470, 933202), (940, 466601), (1081, 405740), (2162, 202870), (4324, 101435), (5405, 81148), (10810, 40574), (20287, 21620)]