220428

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{157}}^1$

素因数の和:183

約数の個数: 48

約数和(自身を含む): 619360

約数和(自身を除く): 398932

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 157, 234, 314, 351, 468, 471, 628, 702, 942, 1404, 1413, 1884, 2041, 2826, 4082, 4239, 5652, 6123, 8164, 8478, 12246, 16956, 18369, 24492, 36738, 55107, 73476, 110214, 220428]

約数ペア:

[(1, 220428), (2, 110214), (3, 73476), (4, 55107), (6, 36738), (9, 24492), (12, 18369), (13, 16956), (18, 12246), (26, 8478), (27, 8164), (36, 6123), (39, 5652), (52, 4239), (54, 4082), (78, 2826), (108, 2041), (117, 1884), (156, 1413), (157, 1404), (234, 942), (314, 702), (351, 628), (468, 471)]