879077120

素因数分解:

$2^8\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1039}}^1$

素因数の和:1721

約数の個数: 72

約数和(自身を含む): 2110879680

約数和(自身を除く): 1231802560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 661, 1039, 1280, 1322, 2078, 2644, 3305, 4156, 5195, 5288, 6610, 8312, 10390, 10576, 13220, 16624, 20780, 21152, 26440, 33248, 41560, 42304, 52880, 66496, 83120, 84608, 105760, 132992, 166240, 169216, 211520, 265984, 332480, 423040, 664960, 686779, 846080, 1329920, 1373558, 2747116, 3433895, 5494232, 6867790, 10988464, 13735580, 21976928, 27471160, 43953856, 54942320, 87907712, 109884640, 175815424, 219769280, 439538560, 879077120]

約数ペア:

[(1, 879077120), (2, 439538560), (4, 219769280), (5, 175815424), (8, 109884640), (10, 87907712), (16, 54942320), (20, 43953856), (32, 27471160), (40, 21976928), (64, 13735580), (80, 10988464), (128, 6867790), (160, 5494232), (256, 3433895), (320, 2747116), (640, 1373558), (661, 1329920), (1039, 846080), (1280, 686779), (1322, 664960), (2078, 423040), (2644, 332480), (3305, 265984), (4156, 211520), (5195, 169216), (5288, 166240), (6610, 132992), (8312, 105760), (10390, 84608), (10576, 83120), (13220, 66496), (16624, 52880), (20780, 42304), (21152, 41560), (26440, 33248)]