28177604

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{389}}^1$

素因数の和:612

約数の個数: 48

約数和(自身を含む): 61152000

約数和(自身を除く): 32974396

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 199, 364, 389, 398, 778, 796, 1393, 1556, 2587, 2723, 2786, 5057, 5174, 5446, 5572, 10114, 10348, 10892, 18109, 20228, 35399, 36218, 70798, 72436, 77411, 141596, 154822, 309644, 541877, 1006343, 1083754, 2012686, 2167508, 4025372, 7044401, 14088802, 28177604]

約数ペア:

[(1, 28177604), (2, 14088802), (4, 7044401), (7, 4025372), (13, 2167508), (14, 2012686), (26, 1083754), (28, 1006343), (52, 541877), (91, 309644), (182, 154822), (199, 141596), (364, 77411), (389, 72436), (398, 70798), (778, 36218), (796, 35399), (1393, 20228), (1556, 18109), (2587, 10892), (2723, 10348), (2786, 10114), (5057, 5572), (5174, 5446)]