2091440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2011}}^1$

素因数の和:2037

約数の個数: 40

約数和(自身を含む): 5239248

約数和(自身を除く): 3147808

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 2011, 4022, 8044, 10055, 16088, 20110, 26143, 32176, 40220, 52286, 80440, 104572, 130715, 160880, 209144, 261430, 418288, 522860, 1045720, 2091440]

約数ペア:

[(1, 2091440), (2, 1045720), (4, 522860), (5, 418288), (8, 261430), (10, 209144), (13, 160880), (16, 130715), (20, 104572), (26, 80440), (40, 52286), (52, 40220), (65, 32176), (80, 26143), (104, 20110), (130, 16088), (208, 10055), (260, 8044), (520, 4022), (1040, 2011)]