207780005

素因数分解:

$5^1\times {\mathrm{41}}^2\times {\mathrm{59}}^1\times {\mathrm{419}}^1$

素因数の和:565

約数の個数: 24

約数和(自身を含む): 260517600

約数和(自身を除く): 52737595

約数列:

[1, 5, 41, 59, 205, 295, 419, 1681, 2095, 2419, 8405, 12095, 17179, 24721, 85895, 99179, 123605, 495895, 704339, 1013561, 3521695, 5067805, 41556001, 207780005]

約数ペア:

[(1, 207780005), (5, 41556001), (41, 5067805), (59, 3521695), (205, 1013561), (295, 704339), (419, 495895), (1681, 123605), (2095, 99179), (2419, 85895), (8405, 24721), (12095, 17179)]