45120880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{409}}^1$

素因数の和:626

約数の個数: 80

約数和(自身を含む): 120795840

約数和(自身を除く): 75674960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 197, 280, 394, 409, 560, 788, 818, 985, 1379, 1576, 1636, 1970, 2045, 2758, 2863, 3152, 3272, 3940, 4090, 5516, 5726, 6544, 6895, 7880, 8180, 11032, 11452, 13790, 14315, 15760, 16360, 22064, 22904, 27580, 28630, 32720, 45808, 55160, 57260, 80573, 110320, 114520, 161146, 229040, 322292, 402865, 564011, 644584, 805730, 1128022, 1289168, 1611460, 2256044, 2820055, 3222920, 4512088, 5640110, 6445840, 9024176, 11280220, 22560440, 45120880]

約数ペア:

[(1, 45120880), (2, 22560440), (4, 11280220), (5, 9024176), (7, 6445840), (8, 5640110), (10, 4512088), (14, 3222920), (16, 2820055), (20, 2256044), (28, 1611460), (35, 1289168), (40, 1128022), (56, 805730), (70, 644584), (80, 564011), (112, 402865), (140, 322292), (197, 229040), (280, 161146), (394, 114520), (409, 110320), (560, 80573), (788, 57260), (818, 55160), (985, 45808), (1379, 32720), (1576, 28630), (1636, 27580), (1970, 22904), (2045, 22064), (2758, 16360), (2863, 15760), (3152, 14315), (3272, 13790), (3940, 11452), (4090, 11032), (5516, 8180), (5726, 7880), (6544, 6895)]