19011920

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{3547}}^1$

素因数の和:3627

約数の個数: 40

約数和(自身を含む): 44875104

約数和(自身を除く): 25863184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 3547, 5360, 7094, 14188, 17735, 28376, 35470, 56752, 70940, 141880, 237649, 283760, 475298, 950596, 1188245, 1901192, 2376490, 3802384, 4752980, 9505960, 19011920]

約数ペア:

[(1, 19011920), (2, 9505960), (4, 4752980), (5, 3802384), (8, 2376490), (10, 1901192), (16, 1188245), (20, 950596), (40, 475298), (67, 283760), (80, 237649), (134, 141880), (268, 70940), (335, 56752), (536, 35470), (670, 28376), (1072, 17735), (1340, 14188), (2680, 7094), (3547, 5360)]