2009788900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:291

約数の個数: 216

約数和(自身を含む): 5329158912

約数和(自身を除く): 3319370012

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 49, 50, 62, 70, 98, 100, 101, 124, 131, 140, 155, 175, 196, 202, 217, 245, 262, 310, 350, 404, 434, 490, 505, 524, 620, 655, 700, 707, 775, 868, 917, 980, 1010, 1085, 1225, 1310, 1414, 1519, 1550, 1834, 2020, 2170, 2450, 2525, 2620, 2828, 3038, 3100, 3131, 3275, 3535, 3668, 4061, 4340, 4585, 4900, 4949, 5050, 5425, 6076, 6262, 6419, 6550, 7070, 7595, 8122, 9170, 9898, 10100, 10850, 12524, 12838, 13100, 13231, 14140, 15190, 15655, 16244, 17675, 18340, 19796, 20305, 21700, 21917, 22925, 24745, 25676, 26462, 28427, 30380, 31310, 32095, 35350, 37975, 40610, 43834, 45850, 49490, 52924, 56854, 62620, 64190, 66155, 70700, 75950, 78275, 81220, 87668, 91700, 92617, 98980, 101525, 109585, 113708, 123725, 128380, 132310, 142135, 151900, 153419, 156550, 160475, 185234, 198989, 203050, 219170, 247450, 264620, 284270, 306838, 313100, 320950, 330775, 370468, 397978, 406100, 410161, 438340, 463085, 494900, 547925, 568540, 613676, 641900, 648319, 661550, 710675, 767095, 795956, 820322, 926170, 994945, 1095850, 1296638, 1323100, 1421350, 1534190, 1640644, 1852340, 1989890, 2050805, 2191700, 2315425, 2593276, 2842700, 2871127, 3068380, 3241595, 3835475, 3979780, 4101610, 4630850, 4974725, 5742254, 6483190, 7670950, 8203220, 9261700, 9949450, 10254025, 11484508, 12966380, 14355635, 15341900, 16207975, 19898900, 20097889, 20508050, 28711270, 32415950, 40195778, 41016100, 57422540, 64831900, 71778175, 80391556, 100489445, 143556350, 200978890, 287112700, 401957780, 502447225, 1004894450, 2009788900]

約数ペア:

[(1, 2009788900), (2, 1004894450), (4, 502447225), (5, 401957780), (7, 287112700), (10, 200978890), (14, 143556350), (20, 100489445), (25, 80391556), (28, 71778175), (31, 64831900), (35, 57422540), (49, 41016100), (50, 40195778), (62, 32415950), (70, 28711270), (98, 20508050), (100, 20097889), (101, 19898900), (124, 16207975), (131, 15341900), (140, 14355635), (155, 12966380), (175, 11484508), (196, 10254025), (202, 9949450), (217, 9261700), (245, 8203220), (262, 7670950), (310, 6483190), (350, 5742254), (404, 4974725), (434, 4630850), (490, 4101610), (505, 3979780), (524, 3835475), (620, 3241595), (655, 3068380), (700, 2871127), (707, 2842700), (775, 2593276), (868, 2315425), (917, 2191700), (980, 2050805), (1010, 1989890), (1085, 1852340), (1225, 1640644), (1310, 1534190), (1414, 1421350), (1519, 1323100), (1550, 1296638), (1834, 1095850), (2020, 994945), (2170, 926170), (2450, 820322), (2525, 795956), (2620, 767095), (2828, 710675), (3038, 661550), (3100, 648319), (3131, 641900), (3275, 613676), (3535, 568540), (3668, 547925), (4061, 494900), (4340, 463085), (4585, 438340), (4900, 410161), (4949, 406100), (5050, 397978), (5425, 370468), (6076, 330775), (6262, 320950), (6419, 313100), (6550, 306838), (7070, 284270), (7595, 264620), (8122, 247450), (9170, 219170), (9898, 203050), (10100, 198989), (10850, 185234), (12524, 160475), (12838, 156550), (13100, 153419), (13231, 151900), (14140, 142135), (15190, 132310), (15655, 128380), (16244, 123725), (17675, 113708), (18340, 109585), (19796, 101525), (20305, 98980), (21700, 92617), (21917, 91700), (22925, 87668), (24745, 81220), (25676, 78275), (26462, 75950), (28427, 70700), (30380, 66155), (31310, 64190), (32095, 62620), (35350, 56854), (37975, 52924), (40610, 49490), (43834, 45850)]