180908

素因数分解:

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

素因数の和:102

約数の個数: 36

約数和(自身を含む): 402192

約数和(自身を除く): 221284

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 71, 91, 98, 142, 182, 196, 284, 364, 497, 637, 923, 994, 1274, 1846, 1988, 2548, 3479, 3692, 6461, 6958, 12922, 13916, 25844, 45227, 90454, 180908]

約数ペア:

[(1, 180908), (2, 90454), (4, 45227), (7, 25844), (13, 13916), (14, 12922), (26, 6958), (28, 6461), (49, 3692), (52, 3479), (71, 2548), (91, 1988), (98, 1846), (142, 1274), (182, 994), (196, 923), (284, 637), (364, 497)]