20706780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{467}}^1\times {\mathrm{739}}^1$

素因数の和:1218

約数の個数: 48

約数和(自身を含む): 58181760

約数和(自身を除く): 37474980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 467, 739, 934, 1401, 1478, 1868, 2217, 2335, 2802, 2956, 3695, 4434, 4670, 5604, 7005, 7390, 8868, 9340, 11085, 14010, 14780, 22170, 28020, 44340, 345113, 690226, 1035339, 1380452, 1725565, 2070678, 3451130, 4141356, 5176695, 6902260, 10353390, 20706780]

約数ペア:

[(1, 20706780), (2, 10353390), (3, 6902260), (4, 5176695), (5, 4141356), (6, 3451130), (10, 2070678), (12, 1725565), (15, 1380452), (20, 1035339), (30, 690226), (60, 345113), (467, 44340), (739, 28020), (934, 22170), (1401, 14780), (1478, 14010), (1868, 11085), (2217, 9340), (2335, 8868), (2802, 7390), (2956, 7005), (3695, 5604), (4434, 4670)]