19390640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{12757}}^1$

素因数の和:12789

約数の個数: 40

約数和(自身を含む): 47459760

約数和(自身を除く): 28069120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 12757, 25514, 51028, 63785, 102056, 127570, 204112, 242383, 255140, 484766, 510280, 969532, 1020560, 1211915, 1939064, 2423830, 3878128, 4847660, 9695320, 19390640]

約数ペア:

[(1, 19390640), (2, 9695320), (4, 4847660), (5, 3878128), (8, 2423830), (10, 1939064), (16, 1211915), (19, 1020560), (20, 969532), (38, 510280), (40, 484766), (76, 255140), (80, 242383), (95, 204112), (152, 127570), (190, 102056), (304, 63785), (380, 51028), (760, 25514), (1520, 12757)]