28905720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{240881}}^1$

素因数の和:240895

約数の個数: 32

約数和(自身を含む): 86717520

約数和(自身を除く): 57811800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 240881, 481762, 722643, 963524, 1204405, 1445286, 1927048, 2408810, 2890572, 3613215, 4817620, 5781144, 7226430, 9635240, 14452860, 28905720]

約数ペア:

[(1, 28905720), (2, 14452860), (3, 9635240), (4, 7226430), (5, 5781144), (6, 4817620), (8, 3613215), (10, 2890572), (12, 2408810), (15, 1927048), (20, 1445286), (24, 1204405), (30, 963524), (40, 722643), (60, 481762), (120, 240881)]