268896640

素因数分解:

$2^7\times 5^1\times {\mathrm{383}}^1\times {\mathrm{1097}}^1$

素因数の和:1499

約数の個数: 64

約数和(自身を含む): 645096960

約数和(自身を除く): 376200320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 383, 640, 766, 1097, 1532, 1915, 2194, 3064, 3830, 4388, 5485, 6128, 7660, 8776, 10970, 12256, 15320, 17552, 21940, 24512, 30640, 35104, 43880, 49024, 61280, 70208, 87760, 122560, 140416, 175520, 245120, 351040, 420151, 702080, 840302, 1680604, 2100755, 3361208, 4201510, 6722416, 8403020, 13444832, 16806040, 26889664, 33612080, 53779328, 67224160, 134448320, 268896640]

約数ペア:

[(1, 268896640), (2, 134448320), (4, 67224160), (5, 53779328), (8, 33612080), (10, 26889664), (16, 16806040), (20, 13444832), (32, 8403020), (40, 6722416), (64, 4201510), (80, 3361208), (128, 2100755), (160, 1680604), (320, 840302), (383, 702080), (640, 420151), (766, 351040), (1097, 245120), (1532, 175520), (1915, 140416), (2194, 122560), (3064, 87760), (3830, 70208), (4388, 61280), (5485, 49024), (6128, 43880), (7660, 35104), (8776, 30640), (10970, 24512), (12256, 21940), (15320, 17552)]