51671920

素因数分解:

$2^4\times 5^1\times {\mathrm{709}}^1\times {\mathrm{911}}^1$

素因数の和:1633

約数の個数: 40

約数和(自身を含む): 120438720

約数和(自身を除く): 68766800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 709, 911, 1418, 1822, 2836, 3545, 3644, 4555, 5672, 7090, 7288, 9110, 11344, 14180, 14576, 18220, 28360, 36440, 56720, 72880, 645899, 1291798, 2583596, 3229495, 5167192, 6458990, 10334384, 12917980, 25835960, 51671920]

約数ペア:

[(1, 51671920), (2, 25835960), (4, 12917980), (5, 10334384), (8, 6458990), (10, 5167192), (16, 3229495), (20, 2583596), (40, 1291798), (80, 645899), (709, 72880), (911, 56720), (1418, 36440), (1822, 28360), (2836, 18220), (3545, 14576), (3644, 14180), (4555, 11344), (5672, 9110), (7090, 7288)]