389640665

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{277}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 495396000

約数和(自身を除く): 105755335

約数列:

[1, 5, 29, 89, 109, 145, 277, 445, 545, 1385, 2581, 3161, 8033, 9701, 12905, 15805, 24653, 30193, 40165, 48505, 123265, 150965, 281329, 714937, 875597, 1406645, 2687177, 3574685, 4377985, 13435885, 77928133, 389640665]

約数ペア:

[(1, 389640665), (5, 77928133), (29, 13435885), (89, 4377985), (109, 3574685), (145, 2687177), (277, 1406645), (445, 875597), (545, 714937), (1385, 281329), (2581, 150965), (3161, 123265), (8033, 48505), (9701, 40165), (12905, 30193), (15805, 24653)]