90645520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1031}}^1$

素因数の和:1208

約数の個数: 80

約数和(自身を含む): 242627328

約数和(自身を除く): 151981808

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 157, 280, 314, 560, 628, 785, 1031, 1099, 1256, 1570, 2062, 2198, 2512, 3140, 4124, 4396, 5155, 5495, 6280, 7217, 8248, 8792, 10310, 10990, 12560, 14434, 16496, 17584, 20620, 21980, 28868, 36085, 41240, 43960, 57736, 72170, 82480, 87920, 115472, 144340, 161867, 288680, 323734, 577360, 647468, 809335, 1133069, 1294936, 1618670, 2266138, 2589872, 3237340, 4532276, 5665345, 6474680, 9064552, 11330690, 12949360, 18129104, 22661380, 45322760, 90645520]

約数ペア:

[(1, 90645520), (2, 45322760), (4, 22661380), (5, 18129104), (7, 12949360), (8, 11330690), (10, 9064552), (14, 6474680), (16, 5665345), (20, 4532276), (28, 3237340), (35, 2589872), (40, 2266138), (56, 1618670), (70, 1294936), (80, 1133069), (112, 809335), (140, 647468), (157, 577360), (280, 323734), (314, 288680), (560, 161867), (628, 144340), (785, 115472), (1031, 87920), (1099, 82480), (1256, 72170), (1570, 57736), (2062, 43960), (2198, 41240), (2512, 36085), (3140, 28868), (4124, 21980), (4396, 20620), (5155, 17584), (5495, 16496), (6280, 14434), (7217, 12560), (8248, 10990), (8792, 10310)]