71224960

素因数分解:

$2^7\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1021}}^1$

素因数の和:1149

約数の個数: 64

約数和(自身を含む): 172002600

約数和(自身を除く): 100777640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 320, 436, 545, 640, 872, 1021, 1090, 1744, 2042, 2180, 3488, 4084, 4360, 5105, 6976, 8168, 8720, 10210, 13952, 16336, 17440, 20420, 32672, 34880, 40840, 65344, 69760, 81680, 111289, 130688, 163360, 222578, 326720, 445156, 556445, 653440, 890312, 1112890, 1780624, 2225780, 3561248, 4451560, 7122496, 8903120, 14244992, 17806240, 35612480, 71224960]

約数ペア:

[(1, 71224960), (2, 35612480), (4, 17806240), (5, 14244992), (8, 8903120), (10, 7122496), (16, 4451560), (20, 3561248), (32, 2225780), (40, 1780624), (64, 1112890), (80, 890312), (109, 653440), (128, 556445), (160, 445156), (218, 326720), (320, 222578), (436, 163360), (545, 130688), (640, 111289), (872, 81680), (1021, 69760), (1090, 65344), (1744, 40840), (2042, 34880), (2180, 32672), (3488, 20420), (4084, 17440), (4360, 16336), (5105, 13952), (6976, 10210), (8168, 8720)]