17997040

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{9781}}^1$

素因数の和:9817

約数の個数: 40

約数和(自身を含む): 43666848

約数和(自身を除く): 25669808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 9781, 19562, 39124, 48905, 78248, 97810, 156496, 195620, 224963, 391240, 449926, 782480, 899852, 1124815, 1799704, 2249630, 3599408, 4499260, 8998520, 17997040]

約数ペア:

[(1, 17997040), (2, 8998520), (4, 4499260), (5, 3599408), (8, 2249630), (10, 1799704), (16, 1124815), (20, 899852), (23, 782480), (40, 449926), (46, 391240), (80, 224963), (92, 195620), (115, 156496), (184, 97810), (230, 78248), (368, 48905), (460, 39124), (920, 19562), (1840, 9781)]