18887120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1163}}^1$

素因数の和:1212

約数の個数: 80

約数和(自身を含む): 51960960

約数和(自身を除く): 33073840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 56, 58, 70, 80, 112, 116, 140, 145, 203, 232, 280, 290, 406, 464, 560, 580, 812, 1015, 1160, 1163, 1624, 2030, 2320, 2326, 3248, 4060, 4652, 5815, 8120, 8141, 9304, 11630, 16240, 16282, 18608, 23260, 32564, 33727, 40705, 46520, 65128, 67454, 81410, 93040, 130256, 134908, 162820, 168635, 236089, 269816, 325640, 337270, 472178, 539632, 651280, 674540, 944356, 1180445, 1349080, 1888712, 2360890, 2698160, 3777424, 4721780, 9443560, 18887120]

約数ペア:

[(1, 18887120), (2, 9443560), (4, 4721780), (5, 3777424), (7, 2698160), (8, 2360890), (10, 1888712), (14, 1349080), (16, 1180445), (20, 944356), (28, 674540), (29, 651280), (35, 539632), (40, 472178), (56, 337270), (58, 325640), (70, 269816), (80, 236089), (112, 168635), (116, 162820), (140, 134908), (145, 130256), (203, 93040), (232, 81410), (280, 67454), (290, 65128), (406, 46520), (464, 40705), (560, 33727), (580, 32564), (812, 23260), (1015, 18608), (1160, 16282), (1163, 16240), (1624, 11630), (2030, 9304), (2320, 8141), (2326, 8120), (3248, 5815), (4060, 4652)]