2009386820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{161267}}^1$

素因数の和:161372

約数の個数: 48

約数和(自身を含む): 4876744320

約数和(自身を除く): 2867357500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1780, 2492, 3115, 6230, 12460, 161267, 322534, 645068, 806335, 1128869, 1612670, 2257738, 3225340, 4515476, 5644345, 11288690, 14352763, 22577380, 28705526, 57411052, 71763815, 100469341, 143527630, 200938682, 287055260, 401877364, 502346705, 1004693410, 2009386820]

約数ペア:

[(1, 2009386820), (2, 1004693410), (4, 502346705), (5, 401877364), (7, 287055260), (10, 200938682), (14, 143527630), (20, 100469341), (28, 71763815), (35, 57411052), (70, 28705526), (89, 22577380), (140, 14352763), (178, 11288690), (356, 5644345), (445, 4515476), (623, 3225340), (890, 2257738), (1246, 1612670), (1780, 1128869), (2492, 806335), (3115, 645068), (6230, 322534), (12460, 161267)]