25800215

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 38522880

約数和(自身を除く): 12722665

約数列:

[1, 5, 7, 31, 35, 43, 49, 79, 155, 215, 217, 245, 301, 395, 553, 1085, 1333, 1505, 1519, 2107, 2449, 2765, 3397, 3871, 6665, 7595, 9331, 10535, 12245, 16985, 17143, 19355, 23779, 46655, 65317, 85715, 105307, 118895, 120001, 166453, 326585, 526535, 600005, 737149, 832265, 3685745, 5160043, 25800215]

約数ペア:

[(1, 25800215), (5, 5160043), (7, 3685745), (31, 832265), (35, 737149), (43, 600005), (49, 526535), (79, 326585), (155, 166453), (215, 120001), (217, 118895), (245, 105307), (301, 85715), (395, 65317), (553, 46655), (1085, 23779), (1333, 19355), (1505, 17143), (1519, 16985), (2107, 12245), (2449, 10535), (2765, 9331), (3397, 7595), (3871, 6665)]