1388996900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43003}}^1$

素因数の和:43053

約数の個数: 72

約数和(自身を含む): 3359472480

約数和(自身を除く): 1970475580

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 25, 34, 38, 50, 68, 76, 85, 95, 100, 170, 190, 323, 340, 380, 425, 475, 646, 850, 950, 1292, 1615, 1700, 1900, 3230, 6460, 8075, 16150, 32300, 43003, 86006, 172012, 215015, 430030, 731051, 817057, 860060, 1075075, 1462102, 1634114, 2150150, 2924204, 3268228, 3655255, 4085285, 4300300, 7310510, 8170570, 13889969, 14621020, 16341140, 18276275, 20426425, 27779938, 36552550, 40852850, 55559876, 69449845, 73105100, 81705700, 138899690, 277799380, 347249225, 694498450, 1388996900]

約数ペア:

[(1, 1388996900), (2, 694498450), (4, 347249225), (5, 277799380), (10, 138899690), (17, 81705700), (19, 73105100), (20, 69449845), (25, 55559876), (34, 40852850), (38, 36552550), (50, 27779938), (68, 20426425), (76, 18276275), (85, 16341140), (95, 14621020), (100, 13889969), (170, 8170570), (190, 7310510), (323, 4300300), (340, 4085285), (380, 3655255), (425, 3268228), (475, 2924204), (646, 2150150), (850, 1634114), (950, 1462102), (1292, 1075075), (1615, 860060), (1700, 817057), (1900, 731051), (3230, 430030), (6460, 215015), (8075, 172012), (16150, 86006), (32300, 43003)]