745780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{761}}^1$

素因数の和:784

約数の個数: 36

約数和(自身を含む): 1824228

約数和(自身を除く): 1078448

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 761, 980, 1522, 3044, 3805, 5327, 7610, 10654, 15220, 21308, 26635, 37289, 53270, 74578, 106540, 149156, 186445, 372890, 745780]

約数ペア:

[(1, 745780), (2, 372890), (4, 186445), (5, 149156), (7, 106540), (10, 74578), (14, 53270), (20, 37289), (28, 26635), (35, 21308), (49, 15220), (70, 10654), (98, 7610), (140, 5327), (196, 3805), (245, 3044), (490, 1522), (761, 980)]