18491680

素因数分解:

$2^5\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2459}}^1$

素因数の和:2521

約数の個数: 48

約数和(自身を含む): 44634240

約数和(自身を除く): 26142560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 80, 94, 160, 188, 235, 376, 470, 752, 940, 1504, 1880, 2459, 3760, 4918, 7520, 9836, 12295, 19672, 24590, 39344, 49180, 78688, 98360, 115573, 196720, 231146, 393440, 462292, 577865, 924584, 1155730, 1849168, 2311460, 3698336, 4622920, 9245840, 18491680]

約数ペア:

[(1, 18491680), (2, 9245840), (4, 4622920), (5, 3698336), (8, 2311460), (10, 1849168), (16, 1155730), (20, 924584), (32, 577865), (40, 462292), (47, 393440), (80, 231146), (94, 196720), (160, 115573), (188, 98360), (235, 78688), (376, 49180), (470, 39344), (752, 24590), (940, 19672), (1504, 12295), (1880, 9836), (2459, 7520), (3760, 4918)]