397520340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{135211}}^1$

素因数の和:135237

約数の個数: 72

約数和(自身を含む): 1294790112

約数和(自身を除く): 897269772

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 135211, 270422, 405633, 540844, 676055, 811266, 946477, 1352110, 1622532, 1892954, 2028165, 2704220, 2839431, 3785908, 4056330, 4732385, 5678862, 6625339, 8112660, 9464770, 11357724, 13250678, 14197155, 18929540, 19876017, 26501356, 28394310, 33126695, 39752034, 56788620, 66253390, 79504068, 99380085, 132506780, 198760170, 397520340]

約数ペア:

[(1, 397520340), (2, 198760170), (3, 132506780), (4, 99380085), (5, 79504068), (6, 66253390), (7, 56788620), (10, 39752034), (12, 33126695), (14, 28394310), (15, 26501356), (20, 19876017), (21, 18929540), (28, 14197155), (30, 13250678), (35, 11357724), (42, 9464770), (49, 8112660), (60, 6625339), (70, 5678862), (84, 4732385), (98, 4056330), (105, 3785908), (140, 2839431), (147, 2704220), (196, 2028165), (210, 1892954), (245, 1622532), (294, 1352110), (420, 946477), (490, 811266), (588, 676055), (735, 540844), (980, 405633), (1470, 270422), (2940, 135211)]