18848240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{13859}}^1$

素因数の和:13889

約数の個数: 40

約数和(自身を含む): 46403280

約数和(自身を除く): 27555040

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 13859, 27718, 55436, 69295, 110872, 138590, 221744, 235603, 277180, 471206, 554360, 942412, 1108720, 1178015, 1884824, 2356030, 3769648, 4712060, 9424120, 18848240]

約数ペア:

[(1, 18848240), (2, 9424120), (4, 4712060), (5, 3769648), (8, 2356030), (10, 1884824), (16, 1178015), (17, 1108720), (20, 942412), (34, 554360), (40, 471206), (68, 277180), (80, 235603), (85, 221744), (136, 138590), (170, 110872), (272, 69295), (340, 55436), (680, 27718), (1360, 13859)]