80765440

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{4507}}^1$

素因数の和:4537

約数の個数: 80

約数和(自身を含む): 221360832

約数和(自身を除く): 140595392

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 1120, 1280, 1792, 2240, 2560, 3584, 4480, 4507, 8960, 9014, 17920, 18028, 22535, 31549, 36056, 45070, 63098, 72112, 90140, 126196, 144224, 157745, 180280, 252392, 288448, 315490, 360560, 504784, 576896, 630980, 721120, 1009568, 1153792, 1261960, 1442240, 2019136, 2307584, 2523920, 2884480, 4038272, 5047840, 5768960, 8076544, 10095680, 11537920, 16153088, 20191360, 40382720, 80765440]

約数ペア:

[(1, 80765440), (2, 40382720), (4, 20191360), (5, 16153088), (7, 11537920), (8, 10095680), (10, 8076544), (14, 5768960), (16, 5047840), (20, 4038272), (28, 2884480), (32, 2523920), (35, 2307584), (40, 2019136), (56, 1442240), (64, 1261960), (70, 1153792), (80, 1009568), (112, 721120), (128, 630980), (140, 576896), (160, 504784), (224, 360560), (256, 315490), (280, 288448), (320, 252392), (448, 180280), (512, 157745), (560, 144224), (640, 126196), (896, 90140), (1120, 72112), (1280, 63098), (1792, 45070), (2240, 36056), (2560, 31549), (3584, 22535), (4480, 18028), (4507, 17920), (8960, 9014)]