18237620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{967}}^1$

素因数の和:1040

約数の個数: 48

約数和(自身を含む): 40981248

約数和(自身を除く): 22743628

約数列:

[1, 2, 4, 5, 10, 20, 23, 41, 46, 82, 92, 115, 164, 205, 230, 410, 460, 820, 943, 967, 1886, 1934, 3772, 3868, 4715, 4835, 9430, 9670, 18860, 19340, 22241, 39647, 44482, 79294, 88964, 111205, 158588, 198235, 222410, 396470, 444820, 792940, 911881, 1823762, 3647524, 4559405, 9118810, 18237620]

約数ペア:

[(1, 18237620), (2, 9118810), (4, 4559405), (5, 3647524), (10, 1823762), (20, 911881), (23, 792940), (41, 444820), (46, 396470), (82, 222410), (92, 198235), (115, 158588), (164, 111205), (205, 88964), (230, 79294), (410, 44482), (460, 39647), (820, 22241), (943, 19340), (967, 18860), (1886, 9670), (1934, 9430), (3772, 4835), (3868, 4715)]