19215700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{283}}^1$

素因数の和:401

約数の個数: 72

約数和(自身を含む): 48316352

約数和(自身を除く): 29100652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 97, 100, 140, 175, 194, 283, 350, 388, 485, 566, 679, 700, 970, 1132, 1358, 1415, 1940, 1981, 2425, 2716, 2830, 3395, 3962, 4850, 5660, 6790, 7075, 7924, 9700, 9905, 13580, 14150, 16975, 19810, 27451, 28300, 33950, 39620, 49525, 54902, 67900, 99050, 109804, 137255, 192157, 198100, 274510, 384314, 549020, 686275, 768628, 960785, 1372550, 1921570, 2745100, 3843140, 4803925, 9607850, 19215700]

約数ペア:

[(1, 19215700), (2, 9607850), (4, 4803925), (5, 3843140), (7, 2745100), (10, 1921570), (14, 1372550), (20, 960785), (25, 768628), (28, 686275), (35, 549020), (50, 384314), (70, 274510), (97, 198100), (100, 192157), (140, 137255), (175, 109804), (194, 99050), (283, 67900), (350, 54902), (388, 49525), (485, 39620), (566, 33950), (679, 28300), (700, 27451), (970, 19810), (1132, 16975), (1358, 14150), (1415, 13580), (1940, 9905), (1981, 9700), (2425, 7924), (2716, 7075), (2830, 6790), (3395, 5660), (3962, 4850)]