90068920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2083}}^1$

素因数の和:2164

約数の個数: 64

約数和(自身を含む): 216069120

約数和(自身を除く): 126000200

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 47, 92, 94, 115, 184, 188, 230, 235, 376, 460, 470, 920, 940, 1081, 1880, 2083, 2162, 4166, 4324, 5405, 8332, 8648, 10415, 10810, 16664, 20830, 21620, 41660, 43240, 47909, 83320, 95818, 97901, 191636, 195802, 239545, 383272, 391604, 479090, 489505, 783208, 958180, 979010, 1916360, 1958020, 2251723, 3916040, 4503446, 9006892, 11258615, 18013784, 22517230, 45034460, 90068920]

約数ペア:

[(1, 90068920), (2, 45034460), (4, 22517230), (5, 18013784), (8, 11258615), (10, 9006892), (20, 4503446), (23, 3916040), (40, 2251723), (46, 1958020), (47, 1916360), (92, 979010), (94, 958180), (115, 783208), (184, 489505), (188, 479090), (230, 391604), (235, 383272), (376, 239545), (460, 195802), (470, 191636), (920, 97901), (940, 95818), (1081, 83320), (1880, 47909), (2083, 43240), (2162, 41660), (4166, 21620), (4324, 20830), (5405, 16664), (8332, 10810), (8648, 10415)]