18407480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{389}}^1$

素因数の和:433

約数の個数: 96

約数和(自身を含む): 51386400

約数和(自身を除く): 32978920

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 169, 182, 260, 280, 338, 364, 389, 455, 520, 676, 728, 778, 845, 910, 1183, 1352, 1556, 1690, 1820, 1945, 2366, 2723, 3112, 3380, 3640, 3890, 4732, 5057, 5446, 5915, 6760, 7780, 9464, 10114, 10892, 11830, 13615, 15560, 20228, 21784, 23660, 25285, 27230, 35399, 40456, 47320, 50570, 54460, 65741, 70798, 101140, 108920, 131482, 141596, 176995, 202280, 262964, 283192, 328705, 353990, 460187, 525928, 657410, 707980, 920374, 1314820, 1415960, 1840748, 2300935, 2629640, 3681496, 4601870, 9203740, 18407480]

約数ペア:

[(1, 18407480), (2, 9203740), (4, 4601870), (5, 3681496), (7, 2629640), (8, 2300935), (10, 1840748), (13, 1415960), (14, 1314820), (20, 920374), (26, 707980), (28, 657410), (35, 525928), (40, 460187), (52, 353990), (56, 328705), (65, 283192), (70, 262964), (91, 202280), (104, 176995), (130, 141596), (140, 131482), (169, 108920), (182, 101140), (260, 70798), (280, 65741), (338, 54460), (364, 50570), (389, 47320), (455, 40456), (520, 35399), (676, 27230), (728, 25285), (778, 23660), (845, 21784), (910, 20228), (1183, 15560), (1352, 13615), (1556, 11830), (1690, 10892), (1820, 10114), (1945, 9464), (2366, 7780), (2723, 6760), (3112, 5915), (3380, 5446), (3640, 5057), (3890, 4732)]