178207900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{163}}^1$

素因数の和:248

約数の個数: 108

約数和(自身を含む): 433960072

約数和(自身を除く): 255752172

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 29, 50, 52, 58, 65, 100, 116, 130, 145, 163, 260, 290, 325, 326, 377, 580, 650, 652, 725, 754, 815, 841, 1300, 1450, 1508, 1630, 1682, 1885, 2119, 2900, 3260, 3364, 3770, 4075, 4205, 4238, 4727, 7540, 8150, 8410, 8476, 9425, 9454, 10595, 10933, 16300, 16820, 18850, 18908, 21025, 21190, 21866, 23635, 37700, 42050, 42380, 43732, 47270, 52975, 54665, 61451, 84100, 94540, 105950, 109330, 118175, 122902, 137083, 211900, 218660, 236350, 245804, 273325, 274166, 307255, 472700, 546650, 548332, 614510, 685415, 1093300, 1229020, 1370830, 1536275, 1782079, 2741660, 3072550, 3427075, 3564158, 6145100, 6854150, 7128316, 8910395, 13708300, 17820790, 35641580, 44551975, 89103950, 178207900]

約数ペア:

[(1, 178207900), (2, 89103950), (4, 44551975), (5, 35641580), (10, 17820790), (13, 13708300), (20, 8910395), (25, 7128316), (26, 6854150), (29, 6145100), (50, 3564158), (52, 3427075), (58, 3072550), (65, 2741660), (100, 1782079), (116, 1536275), (130, 1370830), (145, 1229020), (163, 1093300), (260, 685415), (290, 614510), (325, 548332), (326, 546650), (377, 472700), (580, 307255), (650, 274166), (652, 273325), (725, 245804), (754, 236350), (815, 218660), (841, 211900), (1300, 137083), (1450, 122902), (1508, 118175), (1630, 109330), (1682, 105950), (1885, 94540), (2119, 84100), (2900, 61451), (3260, 54665), (3364, 52975), (3770, 47270), (4075, 43732), (4205, 42380), (4238, 42050), (4727, 37700), (7540, 23635), (8150, 21866), (8410, 21190), (8476, 21025), (9425, 18908), (9454, 18850), (10595, 16820), (10933, 16300)]