155403478

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{199}}^1$

素因数の和:472

約数の個数: 32

約数和(自身を含む): 245966400

約数和(自身を除く): 90562922

約数列:

[1, 2, 37, 61, 74, 122, 173, 199, 346, 398, 2257, 4514, 6401, 7363, 10553, 12139, 12802, 14726, 21106, 24278, 34427, 68854, 390461, 449143, 780922, 898286, 1273799, 2100047, 2547598, 4200094, 77701739, 155403478]

約数ペア:

[(1, 155403478), (2, 77701739), (37, 4200094), (61, 2547598), (74, 2100047), (122, 1273799), (173, 898286), (199, 780922), (346, 449143), (398, 390461), (2257, 68854), (4514, 34427), (6401, 24278), (7363, 21106), (10553, 14726), (12139, 12802)]