38920840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{607}}^1$

素因数の和:854

約数の個数: 64

約数和(自身を含む): 100684800

約数和(自身を除く): 61763960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 229, 280, 458, 607, 916, 1145, 1214, 1603, 1832, 2290, 2428, 3035, 3206, 4249, 4580, 4856, 6070, 6412, 8015, 8498, 9160, 12140, 12824, 16030, 16996, 21245, 24280, 32060, 33992, 42490, 64120, 84980, 139003, 169960, 278006, 556012, 695015, 973021, 1112024, 1390030, 1946042, 2780060, 3892084, 4865105, 5560120, 7784168, 9730210, 19460420, 38920840]

約数ペア:

[(1, 38920840), (2, 19460420), (4, 9730210), (5, 7784168), (7, 5560120), (8, 4865105), (10, 3892084), (14, 2780060), (20, 1946042), (28, 1390030), (35, 1112024), (40, 973021), (56, 695015), (70, 556012), (140, 278006), (229, 169960), (280, 139003), (458, 84980), (607, 64120), (916, 42490), (1145, 33992), (1214, 32060), (1603, 24280), (1832, 21245), (2290, 16996), (2428, 16030), (3035, 12824), (3206, 12140), (4249, 9160), (4580, 8498), (4856, 8015), (6070, 6412)]