2581120

素因数分解:

$2^7\times 5^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:165

約数の個数: 64

約数和(自身を含む): 6395400

約数和(自身を除く): 3814280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 109, 128, 148, 160, 185, 218, 296, 320, 370, 436, 545, 592, 640, 740, 872, 1090, 1184, 1480, 1744, 2180, 2368, 2960, 3488, 4033, 4360, 4736, 5920, 6976, 8066, 8720, 11840, 13952, 16132, 17440, 20165, 23680, 32264, 34880, 40330, 64528, 69760, 80660, 129056, 161320, 258112, 322640, 516224, 645280, 1290560, 2581120]

約数ペア:

[(1, 2581120), (2, 1290560), (4, 645280), (5, 516224), (8, 322640), (10, 258112), (16, 161320), (20, 129056), (32, 80660), (37, 69760), (40, 64528), (64, 40330), (74, 34880), (80, 32264), (109, 23680), (128, 20165), (148, 17440), (160, 16132), (185, 13952), (218, 11840), (296, 8720), (320, 8066), (370, 6976), (436, 5920), (545, 4736), (592, 4360), (640, 4033), (740, 3488), (872, 2960), (1090, 2368), (1184, 2180), (1480, 1744)]