20184484360

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{739}}^1\times {\mathrm{3947}}^1$

素因数の和:4870

約数の個数: 64

約数和(自身を含む): 45751003200

約数和(自身を除く): 25566518840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 739, 865, 1384, 1478, 1730, 2956, 3460, 3695, 3947, 5912, 6920, 7390, 7894, 14780, 15788, 19735, 29560, 31576, 39470, 78940, 127847, 157880, 255694, 511388, 639235, 682831, 1022776, 1278470, 1365662, 2556940, 2731324, 2916833, 3414155, 5113880, 5462648, 5833666, 6828310, 11667332, 13656620, 14584165, 23334664, 27313240, 29168330, 58336660, 116673320, 504612109, 1009224218, 2018448436, 2523060545, 4036896872, 5046121090, 10092242180, 20184484360]

約数ペア:

[(1, 20184484360), (2, 10092242180), (4, 5046121090), (5, 4036896872), (8, 2523060545), (10, 2018448436), (20, 1009224218), (40, 504612109), (173, 116673320), (346, 58336660), (692, 29168330), (739, 27313240), (865, 23334664), (1384, 14584165), (1478, 13656620), (1730, 11667332), (2956, 6828310), (3460, 5833666), (3695, 5462648), (3947, 5113880), (5912, 3414155), (6920, 2916833), (7390, 2731324), (7894, 2556940), (14780, 1365662), (15788, 1278470), (19735, 1022776), (29560, 682831), (31576, 639235), (39470, 511388), (78940, 255694), (127847, 157880)]