64876640

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{21341}}^1$

素因数の和:21375

約数の個数: 48

約数和(自身を含む): 161345520

約数和(自身を除く): 96468880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 21341, 42682, 85364, 106705, 170728, 213410, 341456, 405479, 426820, 682912, 810958, 853640, 1621916, 1707280, 2027395, 3243832, 3414560, 4054790, 6487664, 8109580, 12975328, 16219160, 32438320, 64876640]

約数ペア:

[(1, 64876640), (2, 32438320), (4, 16219160), (5, 12975328), (8, 8109580), (10, 6487664), (16, 4054790), (19, 3414560), (20, 3243832), (32, 2027395), (38, 1707280), (40, 1621916), (76, 853640), (80, 810958), (95, 682912), (152, 426820), (160, 405479), (190, 341456), (304, 213410), (380, 170728), (608, 106705), (760, 85364), (1520, 42682), (3040, 21341)]