204282620

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1\times {\mathrm{547}}^1$

素因数の和:890

約数の個数: 48

約数和(自身を含む): 437488128

約数和(自身を除く): 233205508

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 263, 284, 355, 526, 547, 710, 1052, 1094, 1315, 1420, 2188, 2630, 2735, 5260, 5470, 10940, 18673, 37346, 38837, 74692, 77674, 93365, 143861, 155348, 186730, 194185, 287722, 373460, 388370, 575444, 719305, 776740, 1438610, 2877220, 10214131, 20428262, 40856524, 51070655, 102141310, 204282620]

約数ペア:

[(1, 204282620), (2, 102141310), (4, 51070655), (5, 40856524), (10, 20428262), (20, 10214131), (71, 2877220), (142, 1438610), (263, 776740), (284, 719305), (355, 575444), (526, 388370), (547, 373460), (710, 287722), (1052, 194185), (1094, 186730), (1315, 155348), (1420, 143861), (2188, 93365), (2630, 77674), (2735, 74692), (5260, 38837), (5470, 37346), (10940, 18673)]