15606920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{401}}^1$

素因数の和:558

約数の個数: 64

約数和(自身を含む): 40521600

約数和(自身を除く): 24914680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 278, 280, 401, 556, 695, 802, 973, 1112, 1390, 1604, 1946, 2005, 2780, 2807, 3208, 3892, 4010, 4865, 5560, 5614, 7784, 8020, 9730, 11228, 14035, 16040, 19460, 22456, 28070, 38920, 55739, 56140, 111478, 112280, 222956, 278695, 390173, 445912, 557390, 780346, 1114780, 1560692, 1950865, 2229560, 3121384, 3901730, 7803460, 15606920]

約数ペア:

[(1, 15606920), (2, 7803460), (4, 3901730), (5, 3121384), (7, 2229560), (8, 1950865), (10, 1560692), (14, 1114780), (20, 780346), (28, 557390), (35, 445912), (40, 390173), (56, 278695), (70, 222956), (139, 112280), (140, 111478), (278, 56140), (280, 55739), (401, 38920), (556, 28070), (695, 22456), (802, 19460), (973, 16040), (1112, 14035), (1390, 11228), (1604, 9730), (1946, 8020), (2005, 7784), (2780, 5614), (2807, 5560), (3208, 4865), (3892, 4010)]