2721680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2617}}^1$

素因数の和:2643

約数の個数: 40

約数和(自身を含む): 6817272

約数和(自身を除く): 4095592

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 2617, 5234, 10468, 13085, 20936, 26170, 34021, 41872, 52340, 68042, 104680, 136084, 170105, 209360, 272168, 340210, 544336, 680420, 1360840, 2721680]

約数ペア:

[(1, 2721680), (2, 1360840), (4, 680420), (5, 544336), (8, 340210), (10, 272168), (13, 209360), (16, 170105), (20, 136084), (26, 104680), (40, 68042), (52, 52340), (65, 41872), (80, 34021), (104, 26170), (130, 20936), (208, 13085), (260, 10468), (520, 5234), (1040, 2617)]