80581760

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{17987}}^1$

素因数の和:18013

約数の個数: 64

約数和(自身を含む): 220173120

約数和(自身を除く): 139591360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 17987, 35974, 71948, 89935, 125909, 143896, 179870, 251818, 287792, 359740, 503636, 575584, 629545, 719480, 1007272, 1151168, 1259090, 1438960, 2014544, 2302336, 2518180, 2877920, 4029088, 5036360, 5755840, 8058176, 10072720, 11511680, 16116352, 20145440, 40290880, 80581760]

約数ペア:

[(1, 80581760), (2, 40290880), (4, 20145440), (5, 16116352), (7, 11511680), (8, 10072720), (10, 8058176), (14, 5755840), (16, 5036360), (20, 4029088), (28, 2877920), (32, 2518180), (35, 2302336), (40, 2014544), (56, 1438960), (64, 1259090), (70, 1151168), (80, 1007272), (112, 719480), (128, 629545), (140, 575584), (160, 503636), (224, 359740), (280, 287792), (320, 251818), (448, 179870), (560, 143896), (640, 125909), (896, 89935), (1120, 71948), (2240, 35974), (4480, 17987)]