319776640

素因数分解:

$2^7\times 5^1\times {\mathrm{61}}^1\times {\mathrm{8191}}^1$

素因数の和:8271

約数の個数: 64

約数和(自身を含む): 777093120

約数和(自身を除く): 457316480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 305, 320, 488, 610, 640, 976, 1220, 1952, 2440, 3904, 4880, 7808, 8191, 9760, 16382, 19520, 32764, 39040, 40955, 65528, 81910, 131056, 163820, 262112, 327640, 499651, 524224, 655280, 999302, 1048448, 1310560, 1998604, 2498255, 2621120, 3997208, 4996510, 5242240, 7994416, 9993020, 15988832, 19986040, 31977664, 39972080, 63955328, 79944160, 159888320, 319776640]

約数ペア:

[(1, 319776640), (2, 159888320), (4, 79944160), (5, 63955328), (8, 39972080), (10, 31977664), (16, 19986040), (20, 15988832), (32, 9993020), (40, 7994416), (61, 5242240), (64, 4996510), (80, 3997208), (122, 2621120), (128, 2498255), (160, 1998604), (244, 1310560), (305, 1048448), (320, 999302), (488, 655280), (610, 524224), (640, 499651), (976, 327640), (1220, 262112), (1952, 163820), (2440, 131056), (3904, 81910), (4880, 65528), (7808, 40955), (8191, 39040), (9760, 32764), (16382, 19520)]