15977860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{2213}}^1$

素因数の和:2260

約数の個数: 36

約数和(自身を含む): 35428428

約数和(自身を除く): 19450568

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 2213, 3610, 4426, 7220, 8852, 11065, 22130, 42047, 44260, 84094, 168188, 210235, 420470, 798893, 840940, 1597786, 3195572, 3994465, 7988930, 15977860]

約数ペア:

[(1, 15977860), (2, 7988930), (4, 3994465), (5, 3195572), (10, 1597786), (19, 840940), (20, 798893), (38, 420470), (76, 210235), (95, 168188), (190, 84094), (361, 44260), (380, 42047), (722, 22130), (1444, 11065), (1805, 8852), (2213, 7220), (3610, 4426)]