389875360

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{223}}^2$

素因数の和:475

約数の個数: 108

約数和(自身を含む): 1076287338

約数和(自身を除く): 686411978

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, 223, 224, 245, 280, 392, 446, 490, 560, 784, 892, 980, 1115, 1120, 1561, 1568, 1784, 1960, 2230, 3122, 3568, 3920, 4460, 6244, 7136, 7805, 7840, 8920, 10927, 12488, 15610, 17840, 21854, 24976, 31220, 35680, 43708, 49729, 49952, 54635, 62440, 87416, 99458, 109270, 124880, 174832, 198916, 218540, 248645, 249760, 348103, 349664, 397832, 437080, 497290, 696206, 795664, 874160, 994580, 1392412, 1591328, 1740515, 1748320, 1989160, 2436721, 2784824, 3481030, 3978320, 4873442, 5569648, 6962060, 7956640, 9746884, 11139296, 12183605, 13924120, 19493768, 24367210, 27848240, 38987536, 48734420, 55696480, 77975072, 97468840, 194937680, 389875360]

約数ペア:

[(1, 389875360), (2, 194937680), (4, 97468840), (5, 77975072), (7, 55696480), (8, 48734420), (10, 38987536), (14, 27848240), (16, 24367210), (20, 19493768), (28, 13924120), (32, 12183605), (35, 11139296), (40, 9746884), (49, 7956640), (56, 6962060), (70, 5569648), (80, 4873442), (98, 3978320), (112, 3481030), (140, 2784824), (160, 2436721), (196, 1989160), (223, 1748320), (224, 1740515), (245, 1591328), (280, 1392412), (392, 994580), (446, 874160), (490, 795664), (560, 696206), (784, 497290), (892, 437080), (980, 397832), (1115, 349664), (1120, 348103), (1561, 249760), (1568, 248645), (1784, 218540), (1960, 198916), (2230, 174832), (3122, 124880), (3568, 109270), (3920, 99458), (4460, 87416), (6244, 62440), (7136, 54635), (7805, 49952), (7840, 49729), (8920, 43708), (10927, 35680), (12488, 31220), (15610, 24976), (17840, 21854)]