57543220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2957}}^1$

素因数の和:3112

約数の個数: 48

約数和(自身を含む): 139144320

約数和(自身を除く): 81601100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 2957, 3892, 4865, 5914, 9730, 11828, 14785, 19460, 20699, 29570, 41398, 59140, 82796, 103495, 206990, 411023, 413980, 822046, 1644092, 2055115, 2877161, 4110230, 5754322, 8220460, 11508644, 14385805, 28771610, 57543220]

約数ペア:

[(1, 57543220), (2, 28771610), (4, 14385805), (5, 11508644), (7, 8220460), (10, 5754322), (14, 4110230), (20, 2877161), (28, 2055115), (35, 1644092), (70, 822046), (139, 413980), (140, 411023), (278, 206990), (556, 103495), (695, 82796), (973, 59140), (1390, 41398), (1946, 29570), (2780, 20699), (2957, 19460), (3892, 14785), (4865, 11828), (5914, 9730)]