81840840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:279

約数の個数: 128

約数和(自身を含む): 254016000

約数和(自身を除く): 172175160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 79, 89, 97, 120, 158, 178, 194, 237, 267, 291, 316, 356, 388, 395, 445, 474, 485, 534, 582, 632, 712, 776, 790, 890, 948, 970, 1068, 1164, 1185, 1335, 1455, 1580, 1780, 1896, 1940, 2136, 2328, 2370, 2670, 2910, 3160, 3560, 3880, 4740, 5340, 5820, 7031, 7663, 8633, 9480, 10680, 11640, 14062, 15326, 17266, 21093, 22989, 25899, 28124, 30652, 34532, 35155, 38315, 42186, 43165, 45978, 51798, 56248, 61304, 69064, 70310, 76630, 84372, 86330, 91956, 103596, 105465, 114945, 129495, 140620, 153260, 168744, 172660, 183912, 207192, 210930, 229890, 258990, 281240, 306520, 345320, 421860, 459780, 517980, 682007, 843720, 919560, 1035960, 1364014, 2046021, 2728028, 3410035, 4092042, 5456056, 6820070, 8184084, 10230105, 13640140, 16368168, 20460210, 27280280, 40920420, 81840840]

約数ペア:

[(1, 81840840), (2, 40920420), (3, 27280280), (4, 20460210), (5, 16368168), (6, 13640140), (8, 10230105), (10, 8184084), (12, 6820070), (15, 5456056), (20, 4092042), (24, 3410035), (30, 2728028), (40, 2046021), (60, 1364014), (79, 1035960), (89, 919560), (97, 843720), (120, 682007), (158, 517980), (178, 459780), (194, 421860), (237, 345320), (267, 306520), (291, 281240), (316, 258990), (356, 229890), (388, 210930), (395, 207192), (445, 183912), (474, 172660), (485, 168744), (534, 153260), (582, 140620), (632, 129495), (712, 114945), (776, 105465), (790, 103596), (890, 91956), (948, 86330), (970, 84372), (1068, 76630), (1164, 70310), (1185, 69064), (1335, 61304), (1455, 56248), (1580, 51798), (1780, 45978), (1896, 43165), (1940, 42186), (2136, 38315), (2328, 35155), (2370, 34532), (2670, 30652), (2910, 28124), (3160, 25899), (3560, 22989), (3880, 21093), (4740, 17266), (5340, 15326), (5820, 14062), (7031, 11640), (7663, 10680), (8633, 9480)]