9671620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:233

約数の個数: 72

約数和(自身を含む): 24131520

約数和(自身を除く): 14459900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 139, 140, 142, 196, 245, 278, 284, 355, 490, 497, 556, 695, 710, 973, 980, 994, 1390, 1420, 1946, 1988, 2485, 2780, 3479, 3892, 4865, 4970, 6811, 6958, 9730, 9869, 9940, 13622, 13916, 17395, 19460, 19738, 27244, 34055, 34790, 39476, 49345, 68110, 69083, 69580, 98690, 136220, 138166, 197380, 276332, 345415, 483581, 690830, 967162, 1381660, 1934324, 2417905, 4835810, 9671620]

約数ペア:

[(1, 9671620), (2, 4835810), (4, 2417905), (5, 1934324), (7, 1381660), (10, 967162), (14, 690830), (20, 483581), (28, 345415), (35, 276332), (49, 197380), (70, 138166), (71, 136220), (98, 98690), (139, 69580), (140, 69083), (142, 68110), (196, 49345), (245, 39476), (278, 34790), (284, 34055), (355, 27244), (490, 19738), (497, 19460), (556, 17395), (695, 13916), (710, 13622), (973, 9940), (980, 9869), (994, 9730), (1390, 6958), (1420, 6811), (1946, 4970), (1988, 4865), (2485, 3892), (2780, 3479)]