18756220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19139}}^1$

素因数の和:19162

約数の個数: 36

約数和(自身を含む): 45821160

約数和(自身を除く): 27064940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 19139, 38278, 76556, 95695, 133973, 191390, 267946, 382780, 535892, 669865, 937811, 1339730, 1875622, 2679460, 3751244, 4689055, 9378110, 18756220]

約数ペア:

[(1, 18756220), (2, 9378110), (4, 4689055), (5, 3751244), (7, 2679460), (10, 1875622), (14, 1339730), (20, 937811), (28, 669865), (35, 535892), (49, 382780), (70, 267946), (98, 191390), (140, 133973), (196, 95695), (245, 76556), (490, 38278), (980, 19139)]