28156908

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{907}}^1$

素因数の和:1126

約数の個数: 48

約数和(自身を含む): 71187200

約数和(自身を除く): 43030292

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 199, 398, 597, 796, 907, 1194, 1814, 2388, 2587, 2721, 3628, 5174, 5442, 7761, 10348, 10884, 11791, 15522, 23582, 31044, 35373, 47164, 70746, 141492, 180493, 360986, 541479, 721972, 1082958, 2165916, 2346409, 4692818, 7039227, 9385636, 14078454, 28156908]

約数ペア:

[(1, 28156908), (2, 14078454), (3, 9385636), (4, 7039227), (6, 4692818), (12, 2346409), (13, 2165916), (26, 1082958), (39, 721972), (52, 541479), (78, 360986), (156, 180493), (199, 141492), (398, 70746), (597, 47164), (796, 35373), (907, 31044), (1194, 23582), (1814, 15522), (2388, 11791), (2587, 10884), (2721, 10348), (3628, 7761), (5174, 5442)]