389938340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{523}}^1\times {\mathrm{3389}}^1$

素因数の和:3932

約数の個数: 48

約数和(自身を含む): 895285440

約数和(自身を除く): 505347100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 523, 1046, 2092, 2615, 3389, 5230, 5753, 6778, 10460, 11506, 13556, 16945, 23012, 28765, 33890, 37279, 57530, 67780, 74558, 115060, 149116, 186395, 372790, 745580, 1772447, 3544894, 7089788, 8862235, 17724470, 19496917, 35448940, 38993834, 77987668, 97484585, 194969170, 389938340]

約数ペア:

[(1, 389938340), (2, 194969170), (4, 97484585), (5, 77987668), (10, 38993834), (11, 35448940), (20, 19496917), (22, 17724470), (44, 8862235), (55, 7089788), (110, 3544894), (220, 1772447), (523, 745580), (1046, 372790), (2092, 186395), (2615, 149116), (3389, 115060), (5230, 74558), (5753, 67780), (6778, 57530), (10460, 37279), (11506, 33890), (13556, 28765), (16945, 23012)]