39780760

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{1523}}^1$

素因数の和:2187

約数の個数: 32

約数和(自身を含む): 89702640

約数和(自身を除く): 49921880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 1306, 1523, 2612, 3046, 3265, 5224, 6092, 6530, 7615, 12184, 13060, 15230, 26120, 30460, 60920, 994519, 1989038, 3978076, 4972595, 7956152, 9945190, 19890380, 39780760]

約数ペア:

[(1, 39780760), (2, 19890380), (4, 9945190), (5, 7956152), (8, 4972595), (10, 3978076), (20, 1989038), (40, 994519), (653, 60920), (1306, 30460), (1523, 26120), (2612, 15230), (3046, 13060), (3265, 12184), (5224, 7615), (6092, 6530)]