28843120

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4051}}^1$

素因数の和:4153

約数の個数: 40

約数和(自身を含む): 67830480

約数和(自身を除く): 38987360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 4051, 7120, 8102, 16204, 20255, 32408, 40510, 64816, 81020, 162040, 324080, 360539, 721078, 1442156, 1802695, 2884312, 3605390, 5768624, 7210780, 14421560, 28843120]

約数ペア:

[(1, 28843120), (2, 14421560), (4, 7210780), (5, 5768624), (8, 3605390), (10, 2884312), (16, 1802695), (20, 1442156), (40, 721078), (80, 360539), (89, 324080), (178, 162040), (356, 81020), (445, 64816), (712, 40510), (890, 32408), (1424, 20255), (1780, 16204), (3560, 8102), (4051, 7120)]