28737920

素因数分解:

$2^7\times 5^1\times {\mathrm{83}}^1\times {\mathrm{541}}^1$

素因数の和:643

約数の個数: 64

約数和(自身を含む): 69657840

約数和(自身を除く): 40919920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 128, 160, 166, 320, 332, 415, 541, 640, 664, 830, 1082, 1328, 1660, 2164, 2656, 2705, 3320, 4328, 5312, 5410, 6640, 8656, 10624, 10820, 13280, 17312, 21640, 26560, 34624, 43280, 44903, 53120, 69248, 86560, 89806, 173120, 179612, 224515, 346240, 359224, 449030, 718448, 898060, 1436896, 1796120, 2873792, 3592240, 5747584, 7184480, 14368960, 28737920]

約数ペア:

[(1, 28737920), (2, 14368960), (4, 7184480), (5, 5747584), (8, 3592240), (10, 2873792), (16, 1796120), (20, 1436896), (32, 898060), (40, 718448), (64, 449030), (80, 359224), (83, 346240), (128, 224515), (160, 179612), (166, 173120), (320, 89806), (332, 86560), (415, 69248), (541, 53120), (640, 44903), (664, 43280), (830, 34624), (1082, 26560), (1328, 21640), (1660, 17312), (2164, 13280), (2656, 10820), (2705, 10624), (3320, 8656), (4328, 6640), (5312, 5410)]