206804920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{738589}}^1$

素因数の和:738607

約数の個数: 32

約数和(自身を含む): 531784800

約数和(自身を除く): 324979880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 738589, 1477178, 2954356, 3692945, 5170123, 5908712, 7385890, 10340246, 14771780, 20680492, 25850615, 29543560, 41360984, 51701230, 103402460, 206804920]

約数ペア:

[(1, 206804920), (2, 103402460), (4, 51701230), (5, 41360984), (7, 29543560), (8, 25850615), (10, 20680492), (14, 14771780), (20, 10340246), (28, 7385890), (35, 5908712), (40, 5170123), (56, 3692945), (70, 2954356), (140, 1477178), (280, 738589)]