20827680

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{43391}}^1$

素因数の和:43409

約数の個数: 48

約数和(自身を含む): 65608704

約数和(自身を除く): 44781024

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 43391, 86782, 130173, 173564, 216955, 260346, 347128, 433910, 520692, 650865, 694256, 867820, 1041384, 1301730, 1388512, 1735640, 2082768, 2603460, 3471280, 4165536, 5206920, 6942560, 10413840, 20827680]

約数ペア:

[(1, 20827680), (2, 10413840), (3, 6942560), (4, 5206920), (5, 4165536), (6, 3471280), (8, 2603460), (10, 2082768), (12, 1735640), (15, 1388512), (16, 1301730), (20, 1041384), (24, 867820), (30, 694256), (32, 650865), (40, 520692), (48, 433910), (60, 347128), (80, 260346), (96, 216955), (120, 173564), (160, 130173), (240, 86782), (480, 43391)]