2621840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2521}}^1$

素因数の和:2547

約数の個数: 40

約数和(自身を含む): 6567288

約数和(自身を除く): 3945448

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 2521, 5042, 10084, 12605, 20168, 25210, 32773, 40336, 50420, 65546, 100840, 131092, 163865, 201680, 262184, 327730, 524368, 655460, 1310920, 2621840]

約数ペア:

[(1, 2621840), (2, 1310920), (4, 655460), (5, 524368), (8, 327730), (10, 262184), (13, 201680), (16, 163865), (20, 131092), (26, 100840), (40, 65546), (52, 50420), (65, 40336), (80, 32773), (104, 25210), (130, 20168), (208, 12605), (260, 10084), (520, 5042), (1040, 2521)]