66912440

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{4877}}^1$

素因数の和:4909

約数の個数: 64

約数和(自身を含む): 175608000

約数和(自身を除く): 108695560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2744, 3430, 4877, 6860, 9754, 13720, 19508, 24385, 34139, 39016, 48770, 68278, 97540, 136556, 170695, 195080, 238973, 273112, 341390, 477946, 682780, 955892, 1194865, 1365560, 1672811, 1911784, 2389730, 3345622, 4779460, 6691244, 8364055, 9558920, 13382488, 16728110, 33456220, 66912440]

約数ペア:

[(1, 66912440), (2, 33456220), (4, 16728110), (5, 13382488), (7, 9558920), (8, 8364055), (10, 6691244), (14, 4779460), (20, 3345622), (28, 2389730), (35, 1911784), (40, 1672811), (49, 1365560), (56, 1194865), (70, 955892), (98, 682780), (140, 477946), (196, 341390), (245, 273112), (280, 238973), (343, 195080), (392, 170695), (490, 136556), (686, 97540), (980, 68278), (1372, 48770), (1715, 39016), (1960, 34139), (2744, 24385), (3430, 19508), (4877, 13720), (6860, 9754)]