18369640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{487}}^1$

素因数の和:562

約数の個数: 64

約数和(自身を含む): 44271360

約数和(自身を除く): 25901720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 41, 46, 82, 92, 115, 164, 184, 205, 230, 328, 410, 460, 487, 820, 920, 943, 974, 1640, 1886, 1948, 2435, 3772, 3896, 4715, 4870, 7544, 9430, 9740, 11201, 18860, 19480, 19967, 22402, 37720, 39934, 44804, 56005, 79868, 89608, 99835, 112010, 159736, 199670, 224020, 399340, 448040, 459241, 798680, 918482, 1836964, 2296205, 3673928, 4592410, 9184820, 18369640]

約数ペア:

[(1, 18369640), (2, 9184820), (4, 4592410), (5, 3673928), (8, 2296205), (10, 1836964), (20, 918482), (23, 798680), (40, 459241), (41, 448040), (46, 399340), (82, 224020), (92, 199670), (115, 159736), (164, 112010), (184, 99835), (205, 89608), (230, 79868), (328, 56005), (410, 44804), (460, 39934), (487, 37720), (820, 22402), (920, 19967), (943, 19480), (974, 18860), (1640, 11201), (1886, 9740), (1948, 9430), (2435, 7544), (3772, 4870), (3896, 4715)]