2788973920

素因数分解:

$2^5\times 5^1\times {\mathrm{643}}^1\times {\mathrm{27109}}^1$

素因数の和:27767

約数の個数: 48

約数和(自身を含む): 6599441520

約数和(自身を除く): 3810467600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 643, 1286, 2572, 3215, 5144, 6430, 10288, 12860, 20576, 25720, 27109, 51440, 54218, 102880, 108436, 135545, 216872, 271090, 433744, 542180, 867488, 1084360, 2168720, 4337440, 17431087, 34862174, 69724348, 87155435, 139448696, 174310870, 278897392, 348621740, 557794784, 697243480, 1394486960, 2788973920]

約数ペア:

[(1, 2788973920), (2, 1394486960), (4, 697243480), (5, 557794784), (8, 348621740), (10, 278897392), (16, 174310870), (20, 139448696), (32, 87155435), (40, 69724348), (80, 34862174), (160, 17431087), (643, 4337440), (1286, 2168720), (2572, 1084360), (3215, 867488), (5144, 542180), (6430, 433744), (10288, 271090), (12860, 216872), (20576, 135545), (25720, 108436), (27109, 102880), (51440, 54218)]