20037745

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{937}}^1$

素因数の和:1009

約数の個数: 32

約数和(自身を含む): 30256128

約数和(自身を除く): 10218383

約数列:

[1, 5, 7, 13, 35, 47, 65, 91, 235, 329, 455, 611, 937, 1645, 3055, 4277, 4685, 6559, 12181, 21385, 32795, 44039, 60905, 85267, 220195, 308273, 426335, 572507, 1541365, 2862535, 4007549, 20037745]

約数ペア:

[(1, 20037745), (5, 4007549), (7, 2862535), (13, 1541365), (35, 572507), (47, 426335), (65, 308273), (91, 220195), (235, 85267), (329, 60905), (455, 44039), (611, 32795), (937, 21385), (1645, 12181), (3055, 6559), (4277, 4685)]