30980320

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:360

約数の個数: 96

約数和(自身を含む): 84672000

約数和(自身を除く): 53691680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 139, 140, 160, 199, 224, 278, 280, 398, 556, 560, 695, 796, 973, 995, 1112, 1120, 1390, 1393, 1592, 1946, 1990, 2224, 2780, 2786, 3184, 3892, 3980, 4448, 4865, 5560, 5572, 6368, 6965, 7784, 7960, 9730, 11120, 11144, 13930, 15568, 15920, 19460, 22240, 22288, 27661, 27860, 31136, 31840, 38920, 44576, 55322, 55720, 77840, 110644, 111440, 138305, 155680, 193627, 221288, 222880, 276610, 387254, 442576, 553220, 774508, 885152, 968135, 1106440, 1549016, 1936270, 2212880, 3098032, 3872540, 4425760, 6196064, 7745080, 15490160, 30980320]

約数ペア:

[(1, 30980320), (2, 15490160), (4, 7745080), (5, 6196064), (7, 4425760), (8, 3872540), (10, 3098032), (14, 2212880), (16, 1936270), (20, 1549016), (28, 1106440), (32, 968135), (35, 885152), (40, 774508), (56, 553220), (70, 442576), (80, 387254), (112, 276610), (139, 222880), (140, 221288), (160, 193627), (199, 155680), (224, 138305), (278, 111440), (280, 110644), (398, 77840), (556, 55720), (560, 55322), (695, 44576), (796, 38920), (973, 31840), (995, 31136), (1112, 27860), (1120, 27661), (1390, 22288), (1393, 22240), (1592, 19460), (1946, 15920), (1990, 15568), (2224, 13930), (2780, 11144), (2786, 11120), (3184, 9730), (3892, 7960), (3980, 7784), (4448, 6965), (4865, 6368), (5560, 5572)]