381680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{367}}^1$

素因数の和:393

約数の個数: 40

約数和(自身を含む): 958272

約数和(自身を除く): 576592

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 367, 520, 734, 1040, 1468, 1835, 2936, 3670, 4771, 5872, 7340, 9542, 14680, 19084, 23855, 29360, 38168, 47710, 76336, 95420, 190840, 381680]

約数ペア:

[(1, 381680), (2, 190840), (4, 95420), (5, 76336), (8, 47710), (10, 38168), (13, 29360), (16, 23855), (20, 19084), (26, 14680), (40, 9542), (52, 7340), (65, 5872), (80, 4771), (104, 3670), (130, 2936), (208, 1835), (260, 1468), (367, 1040), (520, 734)]