19745050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{821}}^1$

素因数の和:883

約数の個数: 48

約数和(自身を含む): 40669272

約数和(自身を除く): 20924222

約数列:

[1, 2, 5, 10, 13, 25, 26, 37, 50, 65, 74, 130, 185, 325, 370, 481, 650, 821, 925, 962, 1642, 1850, 2405, 4105, 4810, 8210, 10673, 12025, 20525, 21346, 24050, 30377, 41050, 53365, 60754, 106730, 151885, 266825, 303770, 394901, 533650, 759425, 789802, 1518850, 1974505, 3949010, 9872525, 19745050]

約数ペア:

[(1, 19745050), (2, 9872525), (5, 3949010), (10, 1974505), (13, 1518850), (25, 789802), (26, 759425), (37, 533650), (50, 394901), (65, 303770), (74, 266825), (130, 151885), (185, 106730), (325, 60754), (370, 53365), (481, 41050), (650, 30377), (821, 24050), (925, 21346), (962, 20525), (1642, 12025), (1850, 10673), (2405, 8210), (4105, 4810)]