72747740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{21523}}^1$

素因数の和:21558

約数の個数: 36

約数和(自身を含む): 165433464

約数和(自身を除く): 92685724

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 21523, 43046, 86092, 107615, 215230, 279799, 430460, 559598, 1119196, 1398995, 2797990, 3637387, 5595980, 7274774, 14549548, 18186935, 36373870, 72747740]

約数ペア:

[(1, 72747740), (2, 36373870), (4, 18186935), (5, 14549548), (10, 7274774), (13, 5595980), (20, 3637387), (26, 2797990), (52, 1398995), (65, 1119196), (130, 559598), (169, 430460), (260, 279799), (338, 215230), (676, 107615), (845, 86092), (1690, 43046), (3380, 21523)]