19046920

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{4909}}^1$

素因数の和:5017

約数の個数: 32

約数和(自身を含む): 43306200

約数和(自身を除く): 24259280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 4909, 9818, 19636, 24545, 39272, 49090, 98180, 196360, 476173, 952346, 1904692, 2380865, 3809384, 4761730, 9523460, 19046920]

約数ペア:

[(1, 19046920), (2, 9523460), (4, 4761730), (5, 3809384), (8, 2380865), (10, 1904692), (20, 952346), (40, 476173), (97, 196360), (194, 98180), (388, 49090), (485, 39272), (776, 24545), (970, 19636), (1940, 9818), (3880, 4909)]