6439840

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3659}}^1$

素因数の和:3685

約数の個数: 48

約数和(自身を含む): 16601760

約数和(自身を除く): 10161920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 3659, 7318, 14636, 18295, 29272, 36590, 40249, 58544, 73180, 80498, 117088, 146360, 160996, 201245, 292720, 321992, 402490, 585440, 643984, 804980, 1287968, 1609960, 3219920, 6439840]

約数ペア:

[(1, 6439840), (2, 3219920), (4, 1609960), (5, 1287968), (8, 804980), (10, 643984), (11, 585440), (16, 402490), (20, 321992), (22, 292720), (32, 201245), (40, 160996), (44, 146360), (55, 117088), (80, 80498), (88, 73180), (110, 58544), (160, 40249), (176, 36590), (220, 29272), (352, 18295), (440, 14636), (880, 7318), (1760, 3659)]