989869972

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{388489}}^1$

素因数の和:388520

約数の個数: 36

約数和(自身を含む): 2170105140

約数和(自身を除く): 1180235168

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 364, 637, 1274, 2548, 388489, 776978, 1553956, 2719423, 5050357, 5438846, 10100714, 10877692, 19035961, 20201428, 35352499, 38071922, 70704998, 76143844, 141409996, 247467493, 494934986, 989869972]

約数ペア:

[(1, 989869972), (2, 494934986), (4, 247467493), (7, 141409996), (13, 76143844), (14, 70704998), (26, 38071922), (28, 35352499), (49, 20201428), (52, 19035961), (91, 10877692), (98, 10100714), (182, 5438846), (196, 5050357), (364, 2719423), (637, 1553956), (1274, 776978), (2548, 388489)]