18931760

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{10289}}^1$

素因数の和:10325

約数の個数: 40

約数和(自身を含む): 45934560

約数和(自身を除く): 27002800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 10289, 20578, 41156, 51445, 82312, 102890, 164624, 205780, 236647, 411560, 473294, 823120, 946588, 1183235, 1893176, 2366470, 3786352, 4732940, 9465880, 18931760]

約数ペア:

[(1, 18931760), (2, 9465880), (4, 4732940), (5, 3786352), (8, 2366470), (10, 1893176), (16, 1183235), (20, 946588), (23, 823120), (40, 473294), (46, 411560), (80, 236647), (92, 205780), (115, 164624), (184, 102890), (230, 82312), (368, 51445), (460, 41156), (920, 20578), (1840, 10289)]