19610920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{70039}}^1$

素因数の和:70057

約数の個数: 32

約数和(自身を含む): 50428800

約数和(自身を除く): 30817880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 70039, 140078, 280156, 350195, 490273, 560312, 700390, 980546, 1400780, 1961092, 2451365, 2801560, 3922184, 4902730, 9805460, 19610920]

約数ペア:

[(1, 19610920), (2, 9805460), (4, 4902730), (5, 3922184), (7, 2801560), (8, 2451365), (10, 1961092), (14, 1400780), (20, 980546), (28, 700390), (35, 560312), (40, 490273), (56, 350195), (70, 280156), (140, 140078), (280, 70039)]