149217920

素因数分解:

$2^7\times 5^1\times {\mathrm{107}}^1\times {\mathrm{2179}}^1$

素因数の和:2305

約数の個数: 64

約数和(自身を含む): 360223200

約数和(自身を除く): 211005280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 107, 128, 160, 214, 320, 428, 535, 640, 856, 1070, 1712, 2140, 2179, 3424, 4280, 4358, 6848, 8560, 8716, 10895, 13696, 17120, 17432, 21790, 34240, 34864, 43580, 68480, 69728, 87160, 139456, 174320, 233153, 278912, 348640, 466306, 697280, 932612, 1165765, 1394560, 1865224, 2331530, 3730448, 4663060, 7460896, 9326120, 14921792, 18652240, 29843584, 37304480, 74608960, 149217920]

約数ペア:

[(1, 149217920), (2, 74608960), (4, 37304480), (5, 29843584), (8, 18652240), (10, 14921792), (16, 9326120), (20, 7460896), (32, 4663060), (40, 3730448), (64, 2331530), (80, 1865224), (107, 1394560), (128, 1165765), (160, 932612), (214, 697280), (320, 466306), (428, 348640), (535, 278912), (640, 233153), (856, 174320), (1070, 139456), (1712, 87160), (2140, 69728), (2179, 68480), (3424, 43580), (4280, 34864), (4358, 34240), (6848, 21790), (8560, 17432), (8716, 17120), (10895, 13696)]