491874440

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{277}}^1\times {\mathrm{431}}^1$

素因数の和:822

約数の個数: 64

約数和(自身を含む): 1124098560

約数和(自身を除く): 632224120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 277, 412, 431, 515, 554, 824, 862, 1030, 1108, 1385, 1724, 2060, 2155, 2216, 2770, 3448, 4120, 4310, 5540, 8620, 11080, 17240, 28531, 44393, 57062, 88786, 114124, 119387, 142655, 177572, 221965, 228248, 238774, 285310, 355144, 443930, 477548, 570620, 596935, 887860, 955096, 1141240, 1193870, 1775720, 2387740, 4775480, 12296861, 24593722, 49187444, 61484305, 98374888, 122968610, 245937220, 491874440]

約数ペア:

[(1, 491874440), (2, 245937220), (4, 122968610), (5, 98374888), (8, 61484305), (10, 49187444), (20, 24593722), (40, 12296861), (103, 4775480), (206, 2387740), (277, 1775720), (412, 1193870), (431, 1141240), (515, 955096), (554, 887860), (824, 596935), (862, 570620), (1030, 477548), (1108, 443930), (1385, 355144), (1724, 285310), (2060, 238774), (2155, 228248), (2216, 221965), (2770, 177572), (3448, 142655), (4120, 119387), (4310, 114124), (5540, 88786), (8620, 57062), (11080, 44393), (17240, 28531)]