21380804560

素因数分解:

$2^4\times 5^1\times {\mathrm{3001}}^1\times {\mathrm{89057}}^1$

素因数の和:92071

約数の個数: 40

約数和(自身を含む): 49727493576

約数和(自身を除く): 28346689016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3001, 6002, 12004, 15005, 24008, 30010, 48016, 60020, 89057, 120040, 178114, 240080, 356228, 445285, 712456, 890570, 1424912, 1781140, 3562280, 7124560, 267260057, 534520114, 1069040228, 1336300285, 2138080456, 2672600570, 4276160912, 5345201140, 10690402280, 21380804560]

約数ペア:

[(1, 21380804560), (2, 10690402280), (4, 5345201140), (5, 4276160912), (8, 2672600570), (10, 2138080456), (16, 1336300285), (20, 1069040228), (40, 534520114), (80, 267260057), (3001, 7124560), (6002, 3562280), (12004, 1781140), (15005, 1424912), (24008, 890570), (30010, 712456), (48016, 445285), (60020, 356228), (89057, 240080), (120040, 178114)]