78918280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{9719}}^1$

素因数の和:9766

約数の個数: 64

約数和(自身を含む): 209952000

約数和(自身を除く): 131033720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 812, 1015, 1160, 1624, 2030, 4060, 8120, 9719, 19438, 38876, 48595, 68033, 77752, 97190, 136066, 194380, 272132, 281851, 340165, 388760, 544264, 563702, 680330, 1127404, 1360660, 1409255, 1972957, 2254808, 2721320, 2818510, 3945914, 5637020, 7891828, 9864785, 11274040, 15783656, 19729570, 39459140, 78918280]

約数ペア:

[(1, 78918280), (2, 39459140), (4, 19729570), (5, 15783656), (7, 11274040), (8, 9864785), (10, 7891828), (14, 5637020), (20, 3945914), (28, 2818510), (29, 2721320), (35, 2254808), (40, 1972957), (56, 1409255), (58, 1360660), (70, 1127404), (116, 680330), (140, 563702), (145, 544264), (203, 388760), (232, 340165), (280, 281851), (290, 272132), (406, 194380), (580, 136066), (812, 97190), (1015, 77752), (1160, 68033), (1624, 48595), (2030, 38876), (4060, 19438), (8120, 9719)]