81764480

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{18251}}^1$

素因数の和:18277

約数の個数: 64

約数和(自身を含む): 223404480

約数和(自身を除く): 141640000

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, 18251, 36502, 73004, 91255, 127757, 146008, 182510, 255514, 292016, 365020, 511028, 584032, 638785, 730040, 1022056, 1168064, 1277570, 1460080, 2044112, 2336128, 2555140, 2920160, 4088224, 5110280, 5840320, 8176448, 10220560, 11680640, 16352896, 20441120, 40882240, 81764480]

約数ペア:

[(1, 81764480), (2, 40882240), (4, 20441120), (5, 16352896), (7, 11680640), (8, 10220560), (10, 8176448), (14, 5840320), (16, 5110280), (20, 4088224), (28, 2920160), (32, 2555140), (35, 2336128), (40, 2044112), (56, 1460080), (64, 1277570), (70, 1168064), (80, 1022056), (112, 730040), (128, 638785), (140, 584032), (160, 511028), (224, 365020), (280, 292016), (320, 255514), (448, 182510), (560, 146008), (640, 127757), (896, 91255), (1120, 73004), (2240, 36502), (4480, 18251)]