18796480

素因数分解:

$2^6\times 5^1\times {\mathrm{151}}^1\times {\mathrm{389}}^1$

素因数の和:557

約数の個数: 56

約数和(自身を含む): 45171360

約数和(自身を除く): 26374880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 151, 160, 302, 320, 389, 604, 755, 778, 1208, 1510, 1556, 1945, 2416, 3020, 3112, 3890, 4832, 6040, 6224, 7780, 9664, 12080, 12448, 15560, 24160, 24896, 31120, 48320, 58739, 62240, 117478, 124480, 234956, 293695, 469912, 587390, 939824, 1174780, 1879648, 2349560, 3759296, 4699120, 9398240, 18796480]

約数ペア:

[(1, 18796480), (2, 9398240), (4, 4699120), (5, 3759296), (8, 2349560), (10, 1879648), (16, 1174780), (20, 939824), (32, 587390), (40, 469912), (64, 293695), (80, 234956), (151, 124480), (160, 117478), (302, 62240), (320, 58739), (389, 48320), (604, 31120), (755, 24896), (778, 24160), (1208, 15560), (1510, 12448), (1556, 12080), (1945, 9664), (2416, 7780), (3020, 6224), (3112, 6040), (3890, 4832)]