28279460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{673}}^1$

素因数の和:884

約数の個数: 48

約数和(自身を含む): 65221632

約数和(自身を除く): 36942172

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 191, 220, 382, 673, 764, 955, 1346, 1910, 2101, 2692, 3365, 3820, 4202, 6730, 7403, 8404, 10505, 13460, 14806, 21010, 29612, 37015, 42020, 74030, 128543, 148060, 257086, 514172, 642715, 1285430, 1413973, 2570860, 2827946, 5655892, 7069865, 14139730, 28279460]

約数ペア:

[(1, 28279460), (2, 14139730), (4, 7069865), (5, 5655892), (10, 2827946), (11, 2570860), (20, 1413973), (22, 1285430), (44, 642715), (55, 514172), (110, 257086), (191, 148060), (220, 128543), (382, 74030), (673, 42020), (764, 37015), (955, 29612), (1346, 21010), (1910, 14806), (2101, 13460), (2692, 10505), (3365, 8404), (3820, 7403), (4202, 6730)]