80709860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{7487}}^1$

素因数の和:7521

約数の個数: 72

約数和(自身を含む): 215115264

約数和(自身を除く): 134405404

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 7487, 10780, 14974, 29948, 37435, 52409, 74870, 82357, 104818, 149740, 164714, 209636, 262045, 329428, 366863, 411785, 524090, 576499, 733726, 823570, 1048180, 1152998, 1467452, 1647140, 1834315, 2305996, 2882495, 3668630, 4035493, 5764990, 7337260, 8070986, 11529980, 16141972, 20177465, 40354930, 80709860]

約数ペア:

[(1, 80709860), (2, 40354930), (4, 20177465), (5, 16141972), (7, 11529980), (10, 8070986), (11, 7337260), (14, 5764990), (20, 4035493), (22, 3668630), (28, 2882495), (35, 2305996), (44, 1834315), (49, 1647140), (55, 1467452), (70, 1152998), (77, 1048180), (98, 823570), (110, 733726), (140, 576499), (154, 524090), (196, 411785), (220, 366863), (245, 329428), (308, 262045), (385, 209636), (490, 164714), (539, 149740), (770, 104818), (980, 82357), (1078, 74870), (1540, 52409), (2156, 37435), (2695, 29948), (5390, 14974), (7487, 10780)]