78732140

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{1103}}^1$

素因数の和:1238

約数の個数: 48

約数和(自身を含む): 171376128

約数和(自身を除く): 92643988

約数列:

[1, 2, 4, 5, 10, 20, 43, 83, 86, 166, 172, 215, 332, 415, 430, 830, 860, 1103, 1660, 2206, 3569, 4412, 5515, 7138, 11030, 14276, 17845, 22060, 35690, 47429, 71380, 91549, 94858, 183098, 189716, 237145, 366196, 457745, 474290, 915490, 948580, 1830980, 3936607, 7873214, 15746428, 19683035, 39366070, 78732140]

約数ペア:

[(1, 78732140), (2, 39366070), (4, 19683035), (5, 15746428), (10, 7873214), (20, 3936607), (43, 1830980), (83, 948580), (86, 915490), (166, 474290), (172, 457745), (215, 366196), (332, 237145), (415, 189716), (430, 183098), (830, 94858), (860, 91549), (1103, 71380), (1660, 47429), (2206, 35690), (3569, 22060), (4412, 17845), (5515, 14276), (7138, 11030)]