68001920

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{353}}^1$

素因数の和:422

約数の個数: 128

約数和(自身を含む): 190650240

約数和(自身を除く): 122648320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 56, 64, 70, 80, 86, 112, 128, 140, 160, 172, 215, 224, 280, 301, 320, 344, 353, 430, 448, 560, 602, 640, 688, 706, 860, 896, 1120, 1204, 1376, 1412, 1505, 1720, 1765, 2240, 2408, 2471, 2752, 2824, 3010, 3440, 3530, 4480, 4816, 4942, 5504, 5648, 6020, 6880, 7060, 9632, 9884, 11296, 12040, 12355, 13760, 14120, 15179, 19264, 19768, 22592, 24080, 24710, 27520, 28240, 30358, 38528, 39536, 45184, 48160, 49420, 56480, 60716, 75895, 79072, 96320, 98840, 106253, 112960, 121432, 151790, 158144, 192640, 197680, 212506, 225920, 242864, 303580, 316288, 395360, 425012, 485728, 531265, 607160, 790720, 850024, 971456, 1062530, 1214320, 1581440, 1700048, 1942912, 2125060, 2428640, 3400096, 4250120, 4857280, 6800192, 8500240, 9714560, 13600384, 17000480, 34000960, 68001920]

約数ペア:

[(1, 68001920), (2, 34000960), (4, 17000480), (5, 13600384), (7, 9714560), (8, 8500240), (10, 6800192), (14, 4857280), (16, 4250120), (20, 3400096), (28, 2428640), (32, 2125060), (35, 1942912), (40, 1700048), (43, 1581440), (56, 1214320), (64, 1062530), (70, 971456), (80, 850024), (86, 790720), (112, 607160), (128, 531265), (140, 485728), (160, 425012), (172, 395360), (215, 316288), (224, 303580), (280, 242864), (301, 225920), (320, 212506), (344, 197680), (353, 192640), (430, 158144), (448, 151790), (560, 121432), (602, 112960), (640, 106253), (688, 98840), (706, 96320), (860, 79072), (896, 75895), (1120, 60716), (1204, 56480), (1376, 49420), (1412, 48160), (1505, 45184), (1720, 39536), (1765, 38528), (2240, 30358), (2408, 28240), (2471, 27520), (2752, 24710), (2824, 24080), (3010, 22592), (3440, 19768), (3530, 19264), (4480, 15179), (4816, 14120), (4942, 13760), (5504, 12355), (5648, 12040), (6020, 11296), (6880, 9884), (7060, 9632)]