18886680

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2281}}^1$

素因数の和:2321

約数の個数: 96

約数和(自身を含む): 64078560

約数和(自身を除く): 45191880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 40, 45, 46, 60, 69, 72, 90, 92, 115, 120, 138, 180, 184, 207, 230, 276, 345, 360, 414, 460, 552, 690, 828, 920, 1035, 1380, 1656, 2070, 2281, 2760, 4140, 4562, 6843, 8280, 9124, 11405, 13686, 18248, 20529, 22810, 27372, 34215, 41058, 45620, 52463, 54744, 68430, 82116, 91240, 102645, 104926, 136860, 157389, 164232, 205290, 209852, 262315, 273720, 314778, 410580, 419704, 472167, 524630, 629556, 786945, 821160, 944334, 1049260, 1259112, 1573890, 1888668, 2098520, 2360835, 3147780, 3777336, 4721670, 6295560, 9443340, 18886680]

約数ペア:

[(1, 18886680), (2, 9443340), (3, 6295560), (4, 4721670), (5, 3777336), (6, 3147780), (8, 2360835), (9, 2098520), (10, 1888668), (12, 1573890), (15, 1259112), (18, 1049260), (20, 944334), (23, 821160), (24, 786945), (30, 629556), (36, 524630), (40, 472167), (45, 419704), (46, 410580), (60, 314778), (69, 273720), (72, 262315), (90, 209852), (92, 205290), (115, 164232), (120, 157389), (138, 136860), (180, 104926), (184, 102645), (207, 91240), (230, 82116), (276, 68430), (345, 54744), (360, 52463), (414, 45620), (460, 41058), (552, 34215), (690, 27372), (828, 22810), (920, 20529), (1035, 18248), (1380, 13686), (1656, 11405), (2070, 9124), (2281, 8280), (2760, 6843), (4140, 4562)]