780690540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{265541}}^1$

素因数の和:265567

約数の個数: 72

約数和(自身を含む): 2542830192

約数和(自身を除く): 1762139652

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 265541, 531082, 796623, 1062164, 1327705, 1593246, 1858787, 2655410, 3186492, 3717574, 3983115, 5310820, 5576361, 7435148, 7966230, 9293935, 11152722, 13011509, 15932460, 18587870, 22305444, 26023018, 27881805, 37175740, 39034527, 52046036, 55763610, 65057545, 78069054, 111527220, 130115090, 156138108, 195172635, 260230180, 390345270, 780690540]

約数ペア:

[(1, 780690540), (2, 390345270), (3, 260230180), (4, 195172635), (5, 156138108), (6, 130115090), (7, 111527220), (10, 78069054), (12, 65057545), (14, 55763610), (15, 52046036), (20, 39034527), (21, 37175740), (28, 27881805), (30, 26023018), (35, 22305444), (42, 18587870), (49, 15932460), (60, 13011509), (70, 11152722), (84, 9293935), (98, 7966230), (105, 7435148), (140, 5576361), (147, 5310820), (196, 3983115), (210, 3717574), (245, 3186492), (294, 2655410), (420, 1858787), (490, 1593246), (588, 1327705), (735, 1062164), (980, 796623), (1470, 531082), (2940, 265541)]