13555420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 29748096

約数和(自身を除く): 16192676

約数列:

[1, 2, 4, 5, 10, 20, 41, 61, 82, 122, 164, 205, 244, 271, 305, 410, 542, 610, 820, 1084, 1220, 1355, 2501, 2710, 5002, 5420, 10004, 11111, 12505, 16531, 22222, 25010, 33062, 44444, 50020, 55555, 66124, 82655, 111110, 165310, 222220, 330620, 677771, 1355542, 2711084, 3388855, 6777710, 13555420]

約数ペア:

[(1, 13555420), (2, 6777710), (4, 3388855), (5, 2711084), (10, 1355542), (20, 677771), (41, 330620), (61, 222220), (82, 165310), (122, 111110), (164, 82655), (205, 66124), (244, 55555), (271, 50020), (305, 44444), (410, 33062), (542, 25010), (610, 22222), (820, 16531), (1084, 12505), (1220, 11111), (1355, 10004), (2501, 5420), (2710, 5002)]