80016640

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5683}}^1$

素因数の和:5715

約数の個数: 72

約数和(自身を含む): 209125728

約数和(自身を除く): 129109088

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1760, 2816, 3520, 5683, 7040, 11366, 14080, 22732, 28415, 45464, 56830, 62513, 90928, 113660, 125026, 181856, 227320, 250052, 312565, 363712, 454640, 500104, 625130, 727424, 909280, 1000208, 1250260, 1454848, 1818560, 2000416, 2500520, 3637120, 4000832, 5001040, 7274240, 8001664, 10002080, 16003328, 20004160, 40008320, 80016640]

約数ペア:

[(1, 80016640), (2, 40008320), (4, 20004160), (5, 16003328), (8, 10002080), (10, 8001664), (11, 7274240), (16, 5001040), (20, 4000832), (22, 3637120), (32, 2500520), (40, 2000416), (44, 1818560), (55, 1454848), (64, 1250260), (80, 1000208), (88, 909280), (110, 727424), (128, 625130), (160, 500104), (176, 454640), (220, 363712), (256, 312565), (320, 250052), (352, 227320), (440, 181856), (640, 125026), (704, 113660), (880, 90928), (1280, 62513), (1408, 56830), (1760, 45464), (2816, 28415), (3520, 22732), (5683, 14080), (7040, 11366)]