2019921680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{49411}}^1$

素因数の和:49504

約数の個数: 80

約数和(自身を含む): 5440854144

約数和(自身を除く): 3420932464

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 73, 80, 112, 140, 146, 280, 292, 365, 511, 560, 584, 730, 1022, 1168, 1460, 2044, 2555, 2920, 4088, 5110, 5840, 8176, 10220, 20440, 40880, 49411, 98822, 197644, 247055, 345877, 395288, 494110, 691754, 790576, 988220, 1383508, 1729385, 1976440, 2767016, 3458770, 3607003, 3952880, 5534032, 6917540, 7214006, 13835080, 14428012, 18035015, 25249021, 27670160, 28856024, 36070030, 50498042, 57712048, 72140060, 100996084, 126245105, 144280120, 201992168, 252490210, 288560240, 403984336, 504980420, 1009960840, 2019921680]

約数ペア:

[(1, 2019921680), (2, 1009960840), (4, 504980420), (5, 403984336), (7, 288560240), (8, 252490210), (10, 201992168), (14, 144280120), (16, 126245105), (20, 100996084), (28, 72140060), (35, 57712048), (40, 50498042), (56, 36070030), (70, 28856024), (73, 27670160), (80, 25249021), (112, 18035015), (140, 14428012), (146, 13835080), (280, 7214006), (292, 6917540), (365, 5534032), (511, 3952880), (560, 3607003), (584, 3458770), (730, 2767016), (1022, 1976440), (1168, 1729385), (1460, 1383508), (2044, 988220), (2555, 790576), (2920, 691754), (4088, 494110), (5110, 395288), (5840, 345877), (8176, 247055), (10220, 197644), (20440, 98822), (40880, 49411)]