1905260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 4730880

約数和(自身を除く): 2825620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 439, 620, 868, 878, 1085, 1756, 2170, 2195, 3073, 4340, 4390, 6146, 8780, 12292, 13609, 15365, 27218, 30730, 54436, 61460, 68045, 95263, 136090, 190526, 272180, 381052, 476315, 952630, 1905260]

約数ペア:

[(1, 1905260), (2, 952630), (4, 476315), (5, 381052), (7, 272180), (10, 190526), (14, 136090), (20, 95263), (28, 68045), (31, 61460), (35, 54436), (62, 30730), (70, 27218), (124, 15365), (140, 13609), (155, 12292), (217, 8780), (310, 6146), (434, 4390), (439, 4340), (620, 3073), (868, 2195), (878, 2170), (1085, 1756)]