31939760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{21013}}^1$

素因数の和:21045

約数の個数: 40

約数和(自身を含む): 78172080

約数和(自身を除く): 46232320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 21013, 42026, 84052, 105065, 168104, 210130, 336208, 399247, 420260, 798494, 840520, 1596988, 1681040, 1996235, 3193976, 3992470, 6387952, 7984940, 15969880, 31939760]

約数ペア:

[(1, 31939760), (2, 15969880), (4, 7984940), (5, 6387952), (8, 3992470), (10, 3193976), (16, 1996235), (19, 1681040), (20, 1596988), (38, 840520), (40, 798494), (76, 420260), (80, 399247), (95, 336208), (152, 210130), (190, 168104), (304, 105065), (380, 84052), (760, 42026), (1520, 21013)]