7860980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{409}}^1$

素因数の和:480

約数の個数: 36

約数和(自身を含む): 17099460

約数和(自身を除く): 9238480

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 409, 620, 818, 961, 1636, 1922, 2045, 3844, 4090, 4805, 8180, 9610, 12679, 19220, 25358, 50716, 63395, 126790, 253580, 393049, 786098, 1572196, 1965245, 3930490, 7860980]

約数ペア:

[(1, 7860980), (2, 3930490), (4, 1965245), (5, 1572196), (10, 786098), (20, 393049), (31, 253580), (62, 126790), (124, 63395), (155, 50716), (310, 25358), (409, 19220), (620, 12679), (818, 9610), (961, 8180), (1636, 4805), (1922, 4090), (2045, 3844)]