1999577880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{2801}}^1$

素因数の和:3482

約数の個数: 128

約数和(自身を含む): 6677726400

約数和(自身を除く): 4678148520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 661, 1080, 1322, 1983, 2644, 2801, 3305, 3966, 5288, 5602, 5949, 6610, 7932, 8403, 9915, 11204, 11898, 13220, 14005, 15864, 16806, 17847, 19830, 22408, 23796, 25209, 26440, 28010, 29745, 33612, 35694, 39660, 42015, 47592, 50418, 56020, 59490, 67224, 71388, 75627, 79320, 84030, 89235, 100836, 112040, 118980, 126045, 142776, 151254, 168060, 178470, 201672, 237960, 252090, 302508, 336120, 356940, 378135, 504180, 605016, 713880, 756270, 1008360, 1512540, 1851461, 3025080, 3702922, 5554383, 7405844, 9257305, 11108766, 14811688, 16663149, 18514610, 22217532, 27771915, 33326298, 37029220, 44435064, 49989447, 55543830, 66652596, 74058440, 83315745, 99978894, 111087660, 133305192, 166631490, 199957788, 222175320, 249947235, 333262980, 399915576, 499894470, 666525960, 999788940, 1999577880]

約数ペア:

[(1, 1999577880), (2, 999788940), (3, 666525960), (4, 499894470), (5, 399915576), (6, 333262980), (8, 249947235), (9, 222175320), (10, 199957788), (12, 166631490), (15, 133305192), (18, 111087660), (20, 99978894), (24, 83315745), (27, 74058440), (30, 66652596), (36, 55543830), (40, 49989447), (45, 44435064), (54, 37029220), (60, 33326298), (72, 27771915), (90, 22217532), (108, 18514610), (120, 16663149), (135, 14811688), (180, 11108766), (216, 9257305), (270, 7405844), (360, 5554383), (540, 3702922), (661, 3025080), (1080, 1851461), (1322, 1512540), (1983, 1008360), (2644, 756270), (2801, 713880), (3305, 605016), (3966, 504180), (5288, 378135), (5602, 356940), (5949, 336120), (6610, 302508), (7932, 252090), (8403, 237960), (9915, 201672), (11204, 178470), (11898, 168060), (13220, 151254), (14005, 142776), (15864, 126045), (16806, 118980), (17847, 112040), (19830, 100836), (22408, 89235), (23796, 84030), (25209, 79320), (26440, 75627), (28010, 71388), (29745, 67224), (33612, 59490), (35694, 56020), (39660, 50418), (42015, 47592)]