18181040

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1$

素因数の和:318

約数の個数: 80

約数和(自身を含む): 45372096

約数和(自身を除く): 27191056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 41, 46, 80, 82, 92, 115, 164, 184, 205, 230, 241, 328, 368, 410, 460, 482, 656, 820, 920, 943, 964, 1205, 1640, 1840, 1886, 1928, 2410, 3280, 3772, 3856, 4715, 4820, 5543, 7544, 9430, 9640, 9881, 11086, 15088, 18860, 19280, 19762, 22172, 27715, 37720, 39524, 44344, 49405, 55430, 75440, 79048, 88688, 98810, 110860, 158096, 197620, 221720, 227263, 395240, 443440, 454526, 790480, 909052, 1136315, 1818104, 2272630, 3636208, 4545260, 9090520, 18181040]

約数ペア:

[(1, 18181040), (2, 9090520), (4, 4545260), (5, 3636208), (8, 2272630), (10, 1818104), (16, 1136315), (20, 909052), (23, 790480), (40, 454526), (41, 443440), (46, 395240), (80, 227263), (82, 221720), (92, 197620), (115, 158096), (164, 110860), (184, 98810), (205, 88688), (230, 79048), (241, 75440), (328, 55430), (368, 49405), (410, 44344), (460, 39524), (482, 37720), (656, 27715), (820, 22172), (920, 19762), (943, 19280), (964, 18860), (1205, 15088), (1640, 11086), (1840, 9881), (1886, 9640), (1928, 9430), (2410, 7544), (3280, 5543), (3772, 4820), (3856, 4715)]