15976780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{353}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 35207424

約数和(自身を除く): 19230644

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 73, 124, 146, 155, 292, 310, 353, 365, 620, 706, 730, 1412, 1460, 1765, 2263, 3530, 4526, 7060, 9052, 10943, 11315, 21886, 22630, 25769, 43772, 45260, 51538, 54715, 103076, 109430, 128845, 218860, 257690, 515380, 798839, 1597678, 3195356, 3994195, 7988390, 15976780]

約数ペア:

[(1, 15976780), (2, 7988390), (4, 3994195), (5, 3195356), (10, 1597678), (20, 798839), (31, 515380), (62, 257690), (73, 218860), (124, 128845), (146, 109430), (155, 103076), (292, 54715), (310, 51538), (353, 45260), (365, 43772), (620, 25769), (706, 22630), (730, 21886), (1412, 11315), (1460, 10943), (1765, 9052), (2263, 7060), (3530, 4526)]