72219980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{515857}}^1$

素因数の和:515873

約数の個数: 24

約数和(自身を含む): 173328288

約数和(自身を除く): 101108308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 515857, 1031714, 2063428, 2579285, 3610999, 5158570, 7221998, 10317140, 14443996, 18054995, 36109990, 72219980]

約数ペア:

[(1, 72219980), (2, 36109990), (4, 18054995), (5, 14443996), (7, 10317140), (10, 7221998), (14, 5158570), (20, 3610999), (28, 2579285), (35, 2063428), (70, 1031714), (140, 515857)]