320869760

素因数分解:

$2^7\times 5^1\times {\mathrm{61}}^1\times {\mathrm{8219}}^1$

素因数の和:8299

約数の個数: 64

約数和(自身を含む): 779749200

約数和(自身を除く): 458879440

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, 8219, 9760, 16438, 19520, 32876, 39040, 41095, 65752, 82190, 131504, 164380, 263008, 328760, 501359, 526016, 657520, 1002718, 1052032, 1315040, 2005436, 2506795, 2630080, 4010872, 5013590, 5260160, 8021744, 10027180, 16043488, 20054360, 32086976, 40108720, 64173952, 80217440, 160434880, 320869760]

約数ペア:

[(1, 320869760), (2, 160434880), (4, 80217440), (5, 64173952), (8, 40108720), (10, 32086976), (16, 20054360), (20, 16043488), (32, 10027180), (40, 8021744), (61, 5260160), (64, 5013590), (80, 4010872), (122, 2630080), (128, 2506795), (160, 2005436), (244, 1315040), (305, 1052032), (320, 1002718), (488, 657520), (610, 526016), (640, 501359), (976, 328760), (1220, 263008), (1952, 164380), (2440, 131504), (3904, 82190), (4880, 65752), (7808, 41095), (8219, 39040), (9760, 32876), (16438, 19520)]