27980500

素因数分解:

$2^2\times 5^3\times {\mathrm{107}}^1\times {\mathrm{523}}^1$

素因数の和:649

約数の個数: 48

約数和(自身を含む): 61798464

約数和(自身を除く): 33817964

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 107, 125, 214, 250, 428, 500, 523, 535, 1046, 1070, 2092, 2140, 2615, 2675, 5230, 5350, 10460, 10700, 13075, 13375, 26150, 26750, 52300, 53500, 55961, 65375, 111922, 130750, 223844, 261500, 279805, 559610, 1119220, 1399025, 2798050, 5596100, 6995125, 13990250, 27980500]

約数ペア:

[(1, 27980500), (2, 13990250), (4, 6995125), (5, 5596100), (10, 2798050), (20, 1399025), (25, 1119220), (50, 559610), (100, 279805), (107, 261500), (125, 223844), (214, 130750), (250, 111922), (428, 65375), (500, 55961), (523, 53500), (535, 52300), (1046, 26750), (1070, 26150), (2092, 13375), (2140, 13075), (2615, 10700), (2675, 10460), (5230, 5350)]