129696920

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:468

約数の個数: 64

約数和(自身を含む): 297950400

約数和(自身を除く): 168253480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 151, 197, 218, 302, 394, 436, 545, 604, 755, 788, 872, 985, 1090, 1208, 1510, 1576, 1970, 2180, 3020, 3940, 4360, 6040, 7880, 16459, 21473, 29747, 32918, 42946, 59494, 65836, 82295, 85892, 107365, 118988, 131672, 148735, 164590, 171784, 214730, 237976, 297470, 329180, 429460, 594940, 658360, 858920, 1189880, 3242423, 6484846, 12969692, 16212115, 25939384, 32424230, 64848460, 129696920]

約数ペア:

[(1, 129696920), (2, 64848460), (4, 32424230), (5, 25939384), (8, 16212115), (10, 12969692), (20, 6484846), (40, 3242423), (109, 1189880), (151, 858920), (197, 658360), (218, 594940), (302, 429460), (394, 329180), (436, 297470), (545, 237976), (604, 214730), (755, 171784), (788, 164590), (872, 148735), (985, 131672), (1090, 118988), (1208, 107365), (1510, 85892), (1576, 82295), (1970, 65836), (2180, 59494), (3020, 42946), (3940, 32918), (4360, 29747), (6040, 21473), (7880, 16459)]