220123055

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{761}}^1$

素因数の和:907

約数の個数: 32

約数和(自身を含む): 290340288

約数和(自身を除く): 70217233

約数列:

[1, 5, 17, 41, 83, 85, 205, 415, 697, 761, 1411, 3403, 3485, 3805, 7055, 12937, 17015, 31201, 57851, 63163, 64685, 156005, 289255, 315815, 530417, 1073771, 2589683, 2652085, 5368855, 12948415, 44024611, 220123055]

約数ペア:

[(1, 220123055), (5, 44024611), (17, 12948415), (41, 5368855), (83, 2652085), (85, 2589683), (205, 1073771), (415, 530417), (697, 315815), (761, 289255), (1411, 156005), (3403, 64685), (3485, 63163), (3805, 57851), (7055, 31201), (12937, 17015)]