19538320

素因数分解:

$2^4\times 5^1\times {\mathrm{283}}^1\times {\mathrm{863}}^1$

素因数の和:1159

約数の個数: 40

約数和(自身を含む): 45639936

約数和(自身を除く): 26101616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 283, 566, 863, 1132, 1415, 1726, 2264, 2830, 3452, 4315, 4528, 5660, 6904, 8630, 11320, 13808, 17260, 22640, 34520, 69040, 244229, 488458, 976916, 1221145, 1953832, 2442290, 3907664, 4884580, 9769160, 19538320]

約数ペア:

[(1, 19538320), (2, 9769160), (4, 4884580), (5, 3907664), (8, 2442290), (10, 1953832), (16, 1221145), (20, 976916), (40, 488458), (80, 244229), (283, 69040), (566, 34520), (863, 22640), (1132, 17260), (1415, 13808), (1726, 11320), (2264, 8630), (2830, 6904), (3452, 5660), (4315, 4528)]