16800920

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{6269}}^1$

素因数の和:6347

約数の個数: 32

約数和(自身を含む): 38372400

約数和(自身を除く): 21571480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 6269, 12538, 25076, 31345, 50152, 62690, 125380, 250760, 420023, 840046, 1680092, 2100115, 3360184, 4200230, 8400460, 16800920]

約数ペア:

[(1, 16800920), (2, 8400460), (4, 4200230), (5, 3360184), (8, 2100115), (10, 1680092), (20, 840046), (40, 420023), (67, 250760), (134, 125380), (268, 62690), (335, 50152), (536, 31345), (670, 25076), (1340, 12538), (2680, 6269)]