648045015

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{997}}^1\times {\mathrm{2549}}^1$

素因数の和:3571

約数の個数: 32

約数和(自身を含む): 1099396800

約数和(自身を除く): 451351785

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 997, 2549, 2991, 4985, 7647, 12745, 14955, 16949, 38235, 43333, 50847, 84745, 129999, 216665, 254235, 649995, 2541353, 7624059, 12706765, 38120295, 43203001, 129609003, 216015005, 648045015]

約数ペア:

[(1, 648045015), (3, 216015005), (5, 129609003), (15, 43203001), (17, 38120295), (51, 12706765), (85, 7624059), (255, 2541353), (997, 649995), (2549, 254235), (2991, 216665), (4985, 129999), (7647, 84745), (12745, 50847), (14955, 43333), (16949, 38235)]