71637820

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{353}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 154032480

約数和(自身を除く): 82394660

約数列:

[1, 2, 4, 5, 10, 20, 73, 139, 146, 278, 292, 353, 365, 556, 695, 706, 730, 1390, 1412, 1460, 1765, 2780, 3530, 7060, 10147, 20294, 25769, 40588, 49067, 50735, 51538, 98134, 101470, 103076, 128845, 196268, 202940, 245335, 257690, 490670, 515380, 981340, 3581891, 7163782, 14327564, 17909455, 35818910, 71637820]

約数ペア:

[(1, 71637820), (2, 35818910), (4, 17909455), (5, 14327564), (10, 7163782), (20, 3581891), (73, 981340), (139, 515380), (146, 490670), (278, 257690), (292, 245335), (353, 202940), (365, 196268), (556, 128845), (695, 103076), (706, 101470), (730, 98134), (1390, 51538), (1412, 50735), (1460, 49067), (1765, 40588), (2780, 25769), (3530, 20294), (7060, 10147)]