7803460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{401}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 18910080

約数和(自身を除く): 11106620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 401, 556, 695, 802, 973, 1390, 1604, 1946, 2005, 2780, 2807, 3892, 4010, 4865, 5614, 8020, 9730, 11228, 14035, 19460, 28070, 55739, 56140, 111478, 222956, 278695, 390173, 557390, 780346, 1114780, 1560692, 1950865, 3901730, 7803460]

約数ペア:

[(1, 7803460), (2, 3901730), (4, 1950865), (5, 1560692), (7, 1114780), (10, 780346), (14, 557390), (20, 390173), (28, 278695), (35, 222956), (70, 111478), (139, 56140), (140, 55739), (278, 28070), (401, 19460), (556, 14035), (695, 11228), (802, 9730), (973, 8020), (1390, 5614), (1604, 4865), (1946, 4010), (2005, 3892), (2780, 2807)]