20139932420

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3529}}^1\times {\mathrm{4019}}^1$

素因数の和:7628

約数の個数: 48

約数和(自身を含む): 42912374400

約数和(自身を除く): 22772441980

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 3529, 4019, 7058, 8038, 14116, 16076, 17645, 20095, 35290, 40190, 70580, 80380, 250559, 285349, 501118, 570698, 1002236, 1141396, 1252795, 1426745, 2505590, 2853490, 5011180, 5706980, 14183051, 28366102, 56732204, 70915255, 141830510, 283661020, 1006996621, 2013993242, 4027986484, 5034983105, 10069966210, 20139932420]

約数ペア:

[(1, 20139932420), (2, 10069966210), (4, 5034983105), (5, 4027986484), (10, 2013993242), (20, 1006996621), (71, 283661020), (142, 141830510), (284, 70915255), (355, 56732204), (710, 28366102), (1420, 14183051), (3529, 5706980), (4019, 5011180), (7058, 2853490), (8038, 2505590), (14116, 1426745), (16076, 1252795), (17645, 1141396), (20095, 1002236), (35290, 570698), (40190, 501118), (70580, 285349), (80380, 250559)]