15939920

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{8663}}^1$

素因数の和:8699

約数の個数: 40

約数和(自身を含む): 38676096

約数和(自身を除く): 22736176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 8663, 17326, 34652, 43315, 69304, 86630, 138608, 173260, 199249, 346520, 398498, 693040, 796996, 996245, 1593992, 1992490, 3187984, 3984980, 7969960, 15939920]

約数ペア:

[(1, 15939920), (2, 7969960), (4, 3984980), (5, 3187984), (8, 1992490), (10, 1593992), (16, 996245), (20, 796996), (23, 693040), (40, 398498), (46, 346520), (80, 199249), (92, 173260), (115, 138608), (184, 86630), (230, 69304), (368, 43315), (460, 34652), (920, 17326), (1840, 8663)]