18808400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{3617}}^1$

素因数の和:3648

約数の個数: 60

約数和(自身を含む): 48676572

約数和(自身を除く): 29868172

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 3617, 5200, 7234, 14468, 18085, 28936, 36170, 47021, 57872, 72340, 90425, 94042, 144680, 180850, 188084, 235105, 289360, 361700, 376168, 470210, 723400, 752336, 940420, 1175525, 1446800, 1880840, 2351050, 3761680, 4702100, 9404200, 18808400]

約数ペア:

[(1, 18808400), (2, 9404200), (4, 4702100), (5, 3761680), (8, 2351050), (10, 1880840), (13, 1446800), (16, 1175525), (20, 940420), (25, 752336), (26, 723400), (40, 470210), (50, 376168), (52, 361700), (65, 289360), (80, 235105), (100, 188084), (104, 180850), (130, 144680), (200, 94042), (208, 90425), (260, 72340), (325, 57872), (400, 47021), (520, 36170), (650, 28936), (1040, 18085), (1300, 14468), (2600, 7234), (3617, 5200)]