720119840

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{619}}^1\times {\mathrm{661}}^1$

素因数の和:1306

約数の個数: 96

約数和(自身を含む): 1861755840

約数和(自身を除く): 1141636000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 619, 661, 880, 1238, 1322, 1760, 2476, 2644, 3095, 3305, 4952, 5288, 6190, 6610, 6809, 7271, 9904, 10576, 12380, 13220, 13618, 14542, 19808, 21152, 24760, 26440, 27236, 29084, 34045, 36355, 49520, 52880, 54472, 58168, 68090, 72710, 99040, 105760, 108944, 116336, 136180, 145420, 217888, 232672, 272360, 290840, 409159, 544720, 581680, 818318, 1089440, 1163360, 1636636, 2045795, 3273272, 4091590, 4500749, 6546544, 8183180, 9001498, 13093088, 16366360, 18002996, 22503745, 32732720, 36005992, 45007490, 65465440, 72011984, 90014980, 144023968, 180029960, 360059920, 720119840]

約数ペア:

[(1, 720119840), (2, 360059920), (4, 180029960), (5, 144023968), (8, 90014980), (10, 72011984), (11, 65465440), (16, 45007490), (20, 36005992), (22, 32732720), (32, 22503745), (40, 18002996), (44, 16366360), (55, 13093088), (80, 9001498), (88, 8183180), (110, 6546544), (160, 4500749), (176, 4091590), (220, 3273272), (352, 2045795), (440, 1636636), (619, 1163360), (661, 1089440), (880, 818318), (1238, 581680), (1322, 544720), (1760, 409159), (2476, 290840), (2644, 272360), (3095, 232672), (3305, 217888), (4952, 145420), (5288, 136180), (6190, 116336), (6610, 108944), (6809, 105760), (7271, 99040), (9904, 72710), (10576, 68090), (12380, 58168), (13220, 54472), (13618, 52880), (14542, 49520), (19808, 36355), (21152, 34045), (24760, 29084), (26440, 27236)]