66942940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1\times {\mathrm{491}}^1$

素因数の和:918

約数の個数: 48

約数和(自身を含む): 149524704

約数和(自身を除く): 82581764

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 401, 491, 802, 982, 1604, 1964, 2005, 2455, 4010, 4910, 6817, 8020, 8347, 9820, 13634, 16694, 27268, 33388, 34085, 41735, 68170, 83470, 136340, 166940, 196891, 393782, 787564, 984455, 1968910, 3347147, 3937820, 6694294, 13388588, 16735735, 33471470, 66942940]

約数ペア:

[(1, 66942940), (2, 33471470), (4, 16735735), (5, 13388588), (10, 6694294), (17, 3937820), (20, 3347147), (34, 1968910), (68, 984455), (85, 787564), (170, 393782), (340, 196891), (401, 166940), (491, 136340), (802, 83470), (982, 68170), (1604, 41735), (1964, 34085), (2005, 33388), (2455, 27268), (4010, 16694), (4910, 13634), (6817, 9820), (8020, 8347)]