290804920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1038589}}^1$

素因数の和:1038607

約数の個数: 32

約数和(自身を含む): 747784800

約数和(自身を除く): 456979880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1038589, 2077178, 4154356, 5192945, 7270123, 8308712, 10385890, 14540246, 20771780, 29080492, 36350615, 41543560, 58160984, 72701230, 145402460, 290804920]

約数ペア:

[(1, 290804920), (2, 145402460), (4, 72701230), (5, 58160984), (7, 41543560), (8, 36350615), (10, 29080492), (14, 20771780), (20, 14540246), (28, 10385890), (35, 8308712), (40, 7270123), (56, 5192945), (70, 4154356), (140, 2077178), (280, 1038589)]