722780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:589

約数の個数: 24

約数和(自身を含む): 1542240

約数和(自身を除く): 819460

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 509, 710, 1018, 1420, 2036, 2545, 5090, 10180, 36139, 72278, 144556, 180695, 361390, 722780]

約数ペア:

[(1, 722780), (2, 361390), (4, 180695), (5, 144556), (10, 72278), (20, 36139), (71, 10180), (142, 5090), (284, 2545), (355, 2036), (509, 1420), (710, 1018)]