16446920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{389}}^1$

素因数の和:558

約数の個数: 64

約数和(自身を含む): 42681600

約数和(自身を除く): 26234680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 151, 280, 302, 389, 604, 755, 778, 1057, 1208, 1510, 1556, 1945, 2114, 2723, 3020, 3112, 3890, 4228, 5285, 5446, 6040, 7780, 8456, 10570, 10892, 13615, 15560, 21140, 21784, 27230, 42280, 54460, 58739, 108920, 117478, 234956, 293695, 411173, 469912, 587390, 822346, 1174780, 1644692, 2055865, 2349560, 3289384, 4111730, 8223460, 16446920]

約数ペア:

[(1, 16446920), (2, 8223460), (4, 4111730), (5, 3289384), (7, 2349560), (8, 2055865), (10, 1644692), (14, 1174780), (20, 822346), (28, 587390), (35, 469912), (40, 411173), (56, 293695), (70, 234956), (140, 117478), (151, 108920), (280, 58739), (302, 54460), (389, 42280), (604, 27230), (755, 21784), (778, 21140), (1057, 15560), (1208, 13615), (1510, 10892), (1556, 10570), (1945, 8456), (2114, 7780), (2723, 6040), (3020, 5446), (3112, 5285), (3890, 4228)]