217664860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{222107}}^1$

素因数の和:222130

約数の個数: 36

約数和(自身を含む): 531726552

約数和(自身を除く): 314061692

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 222107, 444214, 888428, 1110535, 1554749, 2221070, 3109498, 4442140, 6218996, 7773745, 10883243, 15547490, 21766486, 31094980, 43532972, 54416215, 108832430, 217664860]

約数ペア:

[(1, 217664860), (2, 108832430), (4, 54416215), (5, 43532972), (7, 31094980), (10, 21766486), (14, 15547490), (20, 10883243), (28, 7773745), (35, 6218996), (49, 4442140), (70, 3109498), (98, 2221070), (140, 1554749), (196, 1110535), (245, 888428), (490, 444214), (980, 222107)]