318804920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1138589}}^1$

素因数の和:1138607

約数の個数: 32

約数和(自身を含む): 819784800

約数和(自身を除く): 500979880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1138589, 2277178, 4554356, 5692945, 7970123, 9108712, 11385890, 15940246, 22771780, 31880492, 39850615, 45543560, 63760984, 79701230, 159402460, 318804920]

約数ペア:

[(1, 318804920), (2, 159402460), (4, 79701230), (5, 63760984), (7, 45543560), (8, 39850615), (10, 31880492), (14, 22771780), (20, 15940246), (28, 11385890), (35, 9108712), (40, 7970123), (56, 5692945), (70, 4554356), (140, 2277178), (280, 1138589)]