219953656

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{5171}}^1$

素因数の和:5599

約数の個数: 32

約数和(自身を含む): 445309200

約数和(自身を除く): 225355544

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 409, 818, 1636, 3272, 5171, 5317, 10342, 10634, 20684, 21268, 41368, 42536, 67223, 134446, 268892, 537784, 2114939, 4229878, 8459756, 16919512, 27494207, 54988414, 109976828, 219953656]

約数ペア:

[(1, 219953656), (2, 109976828), (4, 54988414), (8, 27494207), (13, 16919512), (26, 8459756), (52, 4229878), (104, 2114939), (409, 537784), (818, 268892), (1636, 134446), (3272, 67223), (5171, 42536), (5317, 41368), (10342, 21268), (10634, 20684)]