28001420

素因数分解:

$2^2\times 5^1\times {\mathrm{523}}^1\times {\mathrm{2677}}^1$

素因数の和:3209

約数の個数: 24

約数和(自身を含む): 58937424

約数和(自身を除く): 30936004

約数列:

[1, 2, 4, 5, 10, 20, 523, 1046, 2092, 2615, 2677, 5230, 5354, 10460, 10708, 13385, 26770, 53540, 1400071, 2800142, 5600284, 7000355, 14000710, 28001420]

約数ペア:

[(1, 28001420), (2, 14000710), (4, 7000355), (5, 5600284), (10, 2800142), (20, 1400071), (523, 53540), (1046, 26770), (2092, 13385), (2615, 10708), (2677, 10460), (5230, 5354)]