388568660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{12841}}^1$

素因数の和:12956

約数の個数: 48

約数和(自身を含む): 873769680

約数和(自身を除く): 485201020

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 89, 170, 178, 340, 356, 445, 890, 1513, 1780, 3026, 6052, 7565, 12841, 15130, 25682, 30260, 51364, 64205, 128410, 218297, 256820, 436594, 873188, 1091485, 1142849, 2182970, 2285698, 4365940, 4571396, 5714245, 11428490, 19428433, 22856980, 38856866, 77713732, 97142165, 194284330, 388568660]

約数ペア:

[(1, 388568660), (2, 194284330), (4, 97142165), (5, 77713732), (10, 38856866), (17, 22856980), (20, 19428433), (34, 11428490), (68, 5714245), (85, 4571396), (89, 4365940), (170, 2285698), (178, 2182970), (340, 1142849), (356, 1091485), (445, 873188), (890, 436594), (1513, 256820), (1780, 218297), (3026, 128410), (6052, 64205), (7565, 51364), (12841, 30260), (15130, 25682)]