28720172

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{709}}^1$

素因数の和:786

約数の個数: 48

約数和(自身を含む): 58447200

約数和(自身を除く): 29727028

約数列:

[1, 2, 4, 13, 19, 26, 38, 41, 52, 76, 82, 164, 247, 494, 533, 709, 779, 988, 1066, 1418, 1558, 2132, 2836, 3116, 9217, 10127, 13471, 18434, 20254, 26942, 29069, 36868, 40508, 53884, 58138, 116276, 175123, 350246, 377897, 552311, 700492, 755794, 1104622, 1511588, 2209244, 7180043, 14360086, 28720172]

約数ペア:

[(1, 28720172), (2, 14360086), (4, 7180043), (13, 2209244), (19, 1511588), (26, 1104622), (38, 755794), (41, 700492), (52, 552311), (76, 377897), (82, 350246), (164, 175123), (247, 116276), (494, 58138), (533, 53884), (709, 40508), (779, 36868), (988, 29069), (1066, 26942), (1418, 20254), (1558, 18434), (2132, 13471), (2836, 10127), (3116, 9217)]