64100140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{246539}}^1$

素因数の和:246561

約数の個数: 24

約数和(自身を含む): 144965520

約数和(自身を除く): 80865380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 246539, 493078, 986156, 1232695, 2465390, 3205007, 4930780, 6410014, 12820028, 16025035, 32050070, 64100140]

約数ペア:

[(1, 64100140), (2, 32050070), (4, 16025035), (5, 12820028), (10, 6410014), (13, 4930780), (20, 3205007), (26, 2465390), (52, 1232695), (65, 986156), (130, 493078), (260, 246539)]