20005155940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12990361}}^1$

素因数の和:12990388

約数の個数: 48

約数和(自身を含む): 52377139584

約数和(自身を除く): 32371983644

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 12990361, 25980722, 51961444, 64951805, 90932527, 129903610, 142893971, 181865054, 259807220, 285787942, 363730108, 454662635, 571575884, 714469855, 909325270, 1000257797, 1428939710, 1818650540, 2000515594, 2857879420, 4001031188, 5001288985, 10002577970, 20005155940]

約数ペア:

[(1, 20005155940), (2, 10002577970), (4, 5001288985), (5, 4001031188), (7, 2857879420), (10, 2000515594), (11, 1818650540), (14, 1428939710), (20, 1000257797), (22, 909325270), (28, 714469855), (35, 571575884), (44, 454662635), (55, 363730108), (70, 285787942), (77, 259807220), (110, 181865054), (140, 142893971), (154, 129903610), (220, 90932527), (308, 64951805), (385, 51961444), (770, 25980722), (1540, 12990361)]