397957780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1039}}^1\times {\mathrm{1741}}^1$

素因数の和:2800

約数の個数: 48

約数和(自身を含む): 913086720

約数和(自身を除く): 515128940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1039, 1741, 2078, 3482, 4156, 5195, 6964, 8705, 10390, 11429, 17410, 19151, 20780, 22858, 34820, 38302, 45716, 57145, 76604, 95755, 114290, 191510, 228580, 383020, 1808899, 3617798, 7235596, 9044495, 18088990, 19897889, 36177980, 39795778, 79591556, 99489445, 198978890, 397957780]

約数ペア:

[(1, 397957780), (2, 198978890), (4, 99489445), (5, 79591556), (10, 39795778), (11, 36177980), (20, 19897889), (22, 18088990), (44, 9044495), (55, 7235596), (110, 3617798), (220, 1808899), (1039, 383020), (1741, 228580), (2078, 191510), (3482, 114290), (4156, 95755), (5195, 76604), (6964, 57145), (8705, 45716), (10390, 38302), (11429, 34820), (17410, 22858), (19151, 20780)]