8721420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1061}}^1$

素因数の和:1210

約数の個数: 48

約数和(自身を含む): 24621408

約数和(自身を除く): 15899988

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 137, 274, 411, 548, 685, 822, 1061, 1370, 1644, 2055, 2122, 2740, 3183, 4110, 4244, 5305, 6366, 8220, 10610, 12732, 15915, 21220, 31830, 63660, 145357, 290714, 436071, 581428, 726785, 872142, 1453570, 1744284, 2180355, 2907140, 4360710, 8721420]

約数ペア:

[(1, 8721420), (2, 4360710), (3, 2907140), (4, 2180355), (5, 1744284), (6, 1453570), (10, 872142), (12, 726785), (15, 581428), (20, 436071), (30, 290714), (60, 145357), (137, 63660), (274, 31830), (411, 21220), (548, 15915), (685, 12732), (822, 10610), (1061, 8220), (1370, 6366), (1644, 5305), (2055, 4244), (2122, 4110), (2740, 3183)]