2543840

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1223}}^1$

素因数の和:1251

約数の個数: 48

約数和(自身を含む): 6477408

約数和(自身を除く): 3933568

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 1223, 2080, 2446, 4892, 6115, 9784, 12230, 15899, 19568, 24460, 31798, 39136, 48920, 63596, 79495, 97840, 127192, 158990, 195680, 254384, 317980, 508768, 635960, 1271920, 2543840]

約数ペア:

[(1, 2543840), (2, 1271920), (4, 635960), (5, 508768), (8, 317980), (10, 254384), (13, 195680), (16, 158990), (20, 127192), (26, 97840), (32, 79495), (40, 63596), (52, 48920), (65, 39136), (80, 31798), (104, 24460), (130, 19568), (160, 15899), (208, 12230), (260, 9784), (416, 6115), (520, 4892), (1040, 2446), (1223, 2080)]