201787990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{3271}}^1$

素因数の和:3508

約数の個数: 32

約数和(自身を含む): 376934400

約数和(自身を除く): 175146410

約数列:

[1, 2, 5, 10, 31, 62, 155, 199, 310, 398, 995, 1990, 3271, 6169, 6542, 12338, 16355, 30845, 32710, 61690, 101401, 202802, 507005, 650929, 1014010, 1301858, 3254645, 6509290, 20178799, 40357598, 100893995, 201787990]

約数ペア:

[(1, 201787990), (2, 100893995), (5, 40357598), (10, 20178799), (31, 6509290), (62, 3254645), (155, 1301858), (199, 1014010), (310, 650929), (398, 507005), (995, 202802), (1990, 101401), (3271, 61690), (6169, 32710), (6542, 30845), (12338, 16355)]