80025260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18439}}^1$

素因数の和:18486

約数の個数: 48

約数和(自身を含む): 198266880

約数和(自身を除く): 118241620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 18439, 36878, 73756, 92195, 129073, 184390, 258146, 368780, 516292, 571609, 645365, 1143218, 1290730, 2286436, 2581460, 2858045, 4001263, 5716090, 8002526, 11432180, 16005052, 20006315, 40012630, 80025260]

約数ペア:

[(1, 80025260), (2, 40012630), (4, 20006315), (5, 16005052), (7, 11432180), (10, 8002526), (14, 5716090), (20, 4001263), (28, 2858045), (31, 2581460), (35, 2286436), (62, 1290730), (70, 1143218), (124, 645365), (140, 571609), (155, 516292), (217, 368780), (310, 258146), (434, 184390), (620, 129073), (868, 92195), (1085, 73756), (2170, 36878), (4340, 18439)]