645250

素因数分解:

$2^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:135

約数の個数: 32

約数和(自身を含む): 1263600

約数和(自身を除く): 618350

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 89, 125, 145, 178, 250, 290, 445, 725, 890, 1450, 2225, 2581, 3625, 4450, 5162, 7250, 11125, 12905, 22250, 25810, 64525, 129050, 322625, 645250]

約数ペア:

[(1, 645250), (2, 322625), (5, 129050), (10, 64525), (25, 25810), (29, 22250), (50, 12905), (58, 11125), (89, 7250), (125, 5162), (145, 4450), (178, 3625), (250, 2581), (290, 2225), (445, 1450), (725, 890)]