289820540

素因数分解:

$2^2\times 5^1\times {\mathrm{1823}}^1\times {\mathrm{7949}}^1$

素因数の和:9781

約数の個数: 24

約数和(自身を含む): 609033600

約数和(自身を除く): 319213060

約数列:

[1, 2, 4, 5, 10, 20, 1823, 3646, 7292, 7949, 9115, 15898, 18230, 31796, 36460, 39745, 79490, 158980, 14491027, 28982054, 57964108, 72455135, 144910270, 289820540]

約数ペア:

[(1, 289820540), (2, 144910270), (4, 72455135), (5, 57964108), (10, 28982054), (20, 14491027), (1823, 158980), (3646, 79490), (7292, 39745), (7949, 36460), (9115, 31796), (15898, 18230)]