18446800

素因数分解:

$2^4\times 5^2\times {\mathrm{107}}^1\times {\mathrm{431}}^1$

素因数の和:556

約数の個数: 60

約数和(自身を含む): 44836416

約数和(自身を除く): 26389616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 107, 200, 214, 400, 428, 431, 535, 856, 862, 1070, 1712, 1724, 2140, 2155, 2675, 3448, 4280, 4310, 5350, 6896, 8560, 8620, 10700, 10775, 17240, 21400, 21550, 34480, 42800, 43100, 46117, 86200, 92234, 172400, 184468, 230585, 368936, 461170, 737872, 922340, 1152925, 1844680, 2305850, 3689360, 4611700, 9223400, 18446800]

約数ペア:

[(1, 18446800), (2, 9223400), (4, 4611700), (5, 3689360), (8, 2305850), (10, 1844680), (16, 1152925), (20, 922340), (25, 737872), (40, 461170), (50, 368936), (80, 230585), (100, 184468), (107, 172400), (200, 92234), (214, 86200), (400, 46117), (428, 43100), (431, 42800), (535, 34480), (856, 21550), (862, 21400), (1070, 17240), (1712, 10775), (1724, 10700), (2140, 8620), (2155, 8560), (2675, 6896), (3448, 5350), (4280, 4310)]