309959728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{853}}^1\times {\mathrm{1747}}^1$

素因数の和:2621

約数の個数: 40

約数和(自身を含む): 647871728

約数和(自身を除く): 337912000

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 853, 1706, 1747, 3412, 3494, 6824, 6988, 11089, 13648, 13976, 22178, 22711, 27952, 44356, 45422, 88712, 90844, 177424, 181688, 363376, 1490191, 2980382, 5960764, 11921528, 19372483, 23843056, 38744966, 77489932, 154979864, 309959728]

約数ペア:

[(1, 309959728), (2, 154979864), (4, 77489932), (8, 38744966), (13, 23843056), (16, 19372483), (26, 11921528), (52, 5960764), (104, 2980382), (208, 1490191), (853, 363376), (1706, 181688), (1747, 177424), (3412, 90844), (3494, 88712), (6824, 45422), (6988, 44356), (11089, 27952), (13648, 22711), (13976, 22178)]