389969440

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{49741}}^1$

素因数の和:49770

約数の個数: 72

約数和(自身を含む): 1071741132

約数和(自身を除く): 681771692

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 49741, 99482, 198964, 248705, 348187, 397928, 497410, 696374, 795856, 994820, 1392748, 1591712, 1740935, 1989640, 2437309, 2785496, 3481870, 3979280, 4874618, 5570992, 6963740, 7958560, 9749236, 11141984, 12186545, 13927480, 19498472, 24373090, 27854960, 38996944, 48746180, 55709920, 77993888, 97492360, 194984720, 389969440]

約数ペア:

[(1, 389969440), (2, 194984720), (4, 97492360), (5, 77993888), (7, 55709920), (8, 48746180), (10, 38996944), (14, 27854960), (16, 24373090), (20, 19498472), (28, 13927480), (32, 12186545), (35, 11141984), (40, 9749236), (49, 7958560), (56, 6963740), (70, 5570992), (80, 4874618), (98, 3979280), (112, 3481870), (140, 2785496), (160, 2437309), (196, 1989640), (224, 1740935), (245, 1591712), (280, 1392748), (392, 994820), (490, 795856), (560, 696374), (784, 497410), (980, 397928), (1120, 348187), (1568, 248705), (1960, 198964), (3920, 99482), (7840, 49741)]