78558220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{4139}}^1$

素因数の和:4234

約数の個数: 48

約数和(自身を含む): 180139680

約数和(自身を除く): 101581460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 130, 146, 260, 292, 365, 730, 949, 1460, 1898, 3796, 4139, 4745, 8278, 9490, 16556, 18980, 20695, 41390, 53807, 82780, 107614, 215228, 269035, 302147, 538070, 604294, 1076140, 1208588, 1510735, 3021470, 3927911, 6042940, 7855822, 15711644, 19639555, 39279110, 78558220]

約数ペア:

[(1, 78558220), (2, 39279110), (4, 19639555), (5, 15711644), (10, 7855822), (13, 6042940), (20, 3927911), (26, 3021470), (52, 1510735), (65, 1208588), (73, 1076140), (130, 604294), (146, 538070), (260, 302147), (292, 269035), (365, 215228), (730, 107614), (949, 82780), (1460, 53807), (1898, 41390), (3796, 20695), (4139, 18980), (4745, 16556), (8278, 9490)]