399603955

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{8887}}^1$

素因数の和:8955

約数の個数: 24

約数和(自身を含む): 530826912

約数和(自身を除く): 131222957

約数列:

[1, 5, 17, 23, 85, 115, 391, 529, 1955, 2645, 8887, 8993, 44435, 44965, 151079, 204401, 755395, 1022005, 3474817, 4701223, 17374085, 23506115, 79920791, 399603955]

約数ペア:

[(1, 399603955), (5, 79920791), (17, 23506115), (23, 17374085), (85, 4701223), (115, 3474817), (391, 1022005), (529, 755395), (1955, 204401), (2645, 151079), (8887, 44965), (8993, 44435)]