81708770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{57139}}^1$

素因数の和:57170

約数の個数: 32

約数和(自身を含む): 172791360

約数和(自身を除く): 91082590

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 57139, 114278, 285695, 571390, 628529, 742807, 1257058, 1485614, 3142645, 3714035, 6285290, 7428070, 8170877, 16341754, 40854385, 81708770]

約数ペア:

[(1, 81708770), (2, 40854385), (5, 16341754), (10, 8170877), (11, 7428070), (13, 6285290), (22, 3714035), (26, 3142645), (55, 1485614), (65, 1257058), (110, 742807), (130, 628529), (143, 571390), (286, 285695), (715, 114278), (1430, 57139)]