20703090420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{905647}}^1$

素因数の和:905789

約数の個数: 72

約数和(自身を含む): 63293927424

約数和(自身を除く): 42590837004

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 127, 180, 254, 381, 508, 635, 762, 1143, 1270, 1524, 1905, 2286, 2540, 3810, 4572, 5715, 7620, 11430, 22860, 905647, 1811294, 2716941, 3622588, 4528235, 5433882, 8150823, 9056470, 10867764, 13584705, 16301646, 18112940, 27169410, 32603292, 40754115, 54338820, 81508230, 115017169, 163016460, 230034338, 345051507, 460068676, 575085845, 690103014, 1035154521, 1150171690, 1380206028, 1725257535, 2070309042, 2300343380, 3450515070, 4140618084, 5175772605, 6901030140, 10351545210, 20703090420]

約数ペア:

[(1, 20703090420), (2, 10351545210), (3, 6901030140), (4, 5175772605), (5, 4140618084), (6, 3450515070), (9, 2300343380), (10, 2070309042), (12, 1725257535), (15, 1380206028), (18, 1150171690), (20, 1035154521), (30, 690103014), (36, 575085845), (45, 460068676), (60, 345051507), (90, 230034338), (127, 163016460), (180, 115017169), (254, 81508230), (381, 54338820), (508, 40754115), (635, 32603292), (762, 27169410), (1143, 18112940), (1270, 16301646), (1524, 13584705), (1905, 10867764), (2286, 9056470), (2540, 8150823), (3810, 5433882), (4572, 4528235), (5715, 3622588), (7620, 2716941), (11430, 1811294), (22860, 905647)]