78953840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{140989}}^1$

素因数の和:141009

約数の個数: 40

約数和(自身を含む): 209793120

約数和(自身を除く): 130839280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 140989, 281978, 563956, 704945, 986923, 1127912, 1409890, 1973846, 2255824, 2819780, 3947692, 4934615, 5639560, 7895384, 9869230, 11279120, 15790768, 19738460, 39476920, 78953840]

約数ペア:

[(1, 78953840), (2, 39476920), (4, 19738460), (5, 15790768), (7, 11279120), (8, 9869230), (10, 7895384), (14, 5639560), (16, 4934615), (20, 3947692), (28, 2819780), (35, 2255824), (40, 1973846), (56, 1409890), (70, 1127912), (80, 986923), (112, 704945), (140, 563956), (280, 281978), (560, 140989)]