65221775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 92806560

約数和(自身を除く): 27584785

約数列:

[1, 5, 17, 19, 25, 41, 85, 95, 197, 205, 323, 425, 475, 697, 779, 985, 1025, 1615, 3349, 3485, 3743, 3895, 4925, 8075, 8077, 13243, 16745, 17425, 18715, 19475, 40385, 63631, 66215, 83725, 93575, 137309, 153463, 201925, 318155, 331075, 686545, 767315, 1590775, 2608871, 3432725, 3836575, 13044355, 65221775]

約数ペア:

[(1, 65221775), (5, 13044355), (17, 3836575), (19, 3432725), (25, 2608871), (41, 1590775), (85, 767315), (95, 686545), (197, 331075), (205, 318155), (323, 201925), (425, 153463), (475, 137309), (697, 93575), (779, 83725), (985, 66215), (1025, 63631), (1615, 40385), (3349, 19475), (3485, 18715), (3743, 17425), (3895, 16745), (4925, 13243), (8075, 8077)]