19528040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{719}}^1$

素因数の和:834

約数の個数: 64

約数和(自身を含む): 50803200

約数和(自身を除く): 31275160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 97, 140, 194, 280, 388, 485, 679, 719, 776, 970, 1358, 1438, 1940, 2716, 2876, 3395, 3595, 3880, 5033, 5432, 5752, 6790, 7190, 10066, 13580, 14380, 20132, 25165, 27160, 28760, 40264, 50330, 69743, 100660, 139486, 201320, 278972, 348715, 488201, 557944, 697430, 976402, 1394860, 1952804, 2441005, 2789720, 3905608, 4882010, 9764020, 19528040]

約数ペア:

[(1, 19528040), (2, 9764020), (4, 4882010), (5, 3905608), (7, 2789720), (8, 2441005), (10, 1952804), (14, 1394860), (20, 976402), (28, 697430), (35, 557944), (40, 488201), (56, 348715), (70, 278972), (97, 201320), (140, 139486), (194, 100660), (280, 69743), (388, 50330), (485, 40264), (679, 28760), (719, 27160), (776, 25165), (970, 20132), (1358, 14380), (1438, 13580), (1940, 10066), (2716, 7190), (2876, 6790), (3395, 5752), (3595, 5432), (3880, 5033)]