64945972

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:461

約数の個数: 72

約数和(自身を含む): 144789120

約数和(自身を除く): 79843148

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 71, 91, 98, 142, 182, 196, 284, 359, 364, 497, 637, 718, 923, 994, 1274, 1436, 1846, 1988, 2513, 2548, 3479, 3692, 4667, 5026, 6461, 6958, 9334, 10052, 12922, 13916, 17591, 18668, 25489, 25844, 32669, 35182, 45227, 50978, 65338, 70364, 90454, 101956, 130676, 178423, 180908, 228683, 331357, 356846, 457366, 662714, 713692, 914732, 1248961, 1325428, 2319499, 2497922, 4638998, 4995844, 9277996, 16236493, 32472986, 64945972]

約数ペア:

[(1, 64945972), (2, 32472986), (4, 16236493), (7, 9277996), (13, 4995844), (14, 4638998), (26, 2497922), (28, 2319499), (49, 1325428), (52, 1248961), (71, 914732), (91, 713692), (98, 662714), (142, 457366), (182, 356846), (196, 331357), (284, 228683), (359, 180908), (364, 178423), (497, 130676), (637, 101956), (718, 90454), (923, 70364), (994, 65338), (1274, 50978), (1436, 45227), (1846, 35182), (1988, 32669), (2513, 25844), (2548, 25489), (3479, 18668), (3692, 17591), (4667, 13916), (5026, 12922), (6461, 10052), (6958, 9334)]