221568660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{491}}^1$

素因数の和:638

約数の個数: 144

約数和(自身を含む): 709188480

約数和(自身を除く): 487619820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 109, 115, 138, 180, 207, 218, 230, 276, 327, 345, 414, 436, 460, 491, 545, 654, 690, 828, 981, 982, 1035, 1090, 1308, 1380, 1473, 1635, 1962, 1964, 2070, 2180, 2455, 2507, 2946, 3270, 3924, 4140, 4419, 4905, 4910, 5014, 5892, 6540, 7365, 7521, 8838, 9810, 9820, 10028, 11293, 12535, 14730, 15042, 17676, 19620, 22095, 22563, 22586, 25070, 29460, 30084, 33879, 37605, 44190, 45126, 45172, 50140, 53519, 56465, 67758, 75210, 88380, 90252, 101637, 107038, 112815, 112930, 135516, 150420, 160557, 169395, 203274, 214076, 225630, 225860, 267595, 321114, 338790, 406548, 451260, 481671, 508185, 535190, 642228, 677580, 802785, 963342, 1016370, 1070380, 1230937, 1605570, 1926684, 2032740, 2408355, 2461874, 3211140, 3692811, 4816710, 4923748, 6154685, 7385622, 9633420, 11078433, 12309370, 14771244, 18464055, 22156866, 24618740, 36928110, 44313732, 55392165, 73856220, 110784330, 221568660]

約数ペア:

[(1, 221568660), (2, 110784330), (3, 73856220), (4, 55392165), (5, 44313732), (6, 36928110), (9, 24618740), (10, 22156866), (12, 18464055), (15, 14771244), (18, 12309370), (20, 11078433), (23, 9633420), (30, 7385622), (36, 6154685), (45, 4923748), (46, 4816710), (60, 3692811), (69, 3211140), (90, 2461874), (92, 2408355), (109, 2032740), (115, 1926684), (138, 1605570), (180, 1230937), (207, 1070380), (218, 1016370), (230, 963342), (276, 802785), (327, 677580), (345, 642228), (414, 535190), (436, 508185), (460, 481671), (491, 451260), (545, 406548), (654, 338790), (690, 321114), (828, 267595), (981, 225860), (982, 225630), (1035, 214076), (1090, 203274), (1308, 169395), (1380, 160557), (1473, 150420), (1635, 135516), (1962, 112930), (1964, 112815), (2070, 107038), (2180, 101637), (2455, 90252), (2507, 88380), (2946, 75210), (3270, 67758), (3924, 56465), (4140, 53519), (4419, 50140), (4905, 45172), (4910, 45126), (5014, 44190), (5892, 37605), (6540, 33879), (7365, 30084), (7521, 29460), (8838, 25070), (9810, 22586), (9820, 22563), (10028, 22095), (11293, 19620), (12535, 17676), (14730, 15042)]