207740320

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{18287}}^1$

素因数の和:18373

約数の個数: 48

約数和(自身を含む): 497726208

約数和(自身を除く): 289985888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 2272, 2840, 5680, 11360, 18287, 36574, 73148, 91435, 146296, 182870, 292592, 365740, 585184, 731480, 1298377, 1462960, 2596754, 2925920, 5193508, 6491885, 10387016, 12983770, 20774032, 25967540, 41548064, 51935080, 103870160, 207740320]

約数ペア:

[(1, 207740320), (2, 103870160), (4, 51935080), (5, 41548064), (8, 25967540), (10, 20774032), (16, 12983770), (20, 10387016), (32, 6491885), (40, 5193508), (71, 2925920), (80, 2596754), (142, 1462960), (160, 1298377), (284, 731480), (355, 585184), (568, 365740), (710, 292592), (1136, 182870), (1420, 146296), (2272, 91435), (2840, 73148), (5680, 36574), (11360, 18287)]