21063938640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87766411}}^1$

素因数の和:87766427

約数の個数: 40

約数和(自身を含む): 65298210528

約数和(自身を除く): 44234271888

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87766411, 175532822, 263299233, 351065644, 438832055, 526598466, 702131288, 877664110, 1053196932, 1316496165, 1404262576, 1755328220, 2106393864, 2632992330, 3510656440, 4212787728, 5265984660, 7021312880, 10531969320, 21063938640]

約数ペア:

[(1, 21063938640), (2, 10531969320), (3, 7021312880), (4, 5265984660), (5, 4212787728), (6, 3510656440), (8, 2632992330), (10, 2106393864), (12, 1755328220), (15, 1404262576), (16, 1316496165), (20, 1053196932), (24, 877664110), (30, 702131288), (40, 526598466), (48, 438832055), (60, 351065644), (80, 263299233), (120, 175532822), (240, 87766411)]