1687668780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{251}}^1\times {\mathrm{2287}}^1$

素因数の和:2564

約数の個数: 144

約数和(自身を含む): 5521291776

約数和(自身を除く): 3833622996

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 251, 294, 420, 490, 502, 588, 735, 753, 980, 1004, 1255, 1470, 1506, 1757, 2287, 2510, 2940, 3012, 3514, 3765, 4574, 5020, 5271, 6861, 7028, 7530, 8785, 9148, 10542, 11435, 12299, 13722, 15060, 16009, 17570, 21084, 22870, 24598, 26355, 27444, 32018, 34305, 35140, 36897, 45740, 48027, 49196, 52710, 61495, 64036, 68610, 73794, 80045, 96054, 105420, 112063, 122990, 137220, 147588, 160090, 184485, 192108, 224126, 240135, 245980, 320180, 336189, 368970, 448252, 480270, 560315, 574037, 672378, 737940, 960540, 1120630, 1148074, 1344756, 1680945, 1722111, 2241260, 2296148, 2870185, 3361890, 3444222, 4018259, 5740370, 6723780, 6888444, 8036518, 8610555, 11480740, 12054777, 16073036, 17221110, 20091295, 24109554, 28127813, 34442220, 40182590, 48219108, 56255626, 60273885, 80365180, 84383439, 112511252, 120547770, 140639065, 168766878, 241095540, 281278130, 337533756, 421917195, 562556260, 843834390, 1687668780]

約数ペア:

[(1, 1687668780), (2, 843834390), (3, 562556260), (4, 421917195), (5, 337533756), (6, 281278130), (7, 241095540), (10, 168766878), (12, 140639065), (14, 120547770), (15, 112511252), (20, 84383439), (21, 80365180), (28, 60273885), (30, 56255626), (35, 48219108), (42, 40182590), (49, 34442220), (60, 28127813), (70, 24109554), (84, 20091295), (98, 17221110), (105, 16073036), (140, 12054777), (147, 11480740), (196, 8610555), (210, 8036518), (245, 6888444), (251, 6723780), (294, 5740370), (420, 4018259), (490, 3444222), (502, 3361890), (588, 2870185), (735, 2296148), (753, 2241260), (980, 1722111), (1004, 1680945), (1255, 1344756), (1470, 1148074), (1506, 1120630), (1757, 960540), (2287, 737940), (2510, 672378), (2940, 574037), (3012, 560315), (3514, 480270), (3765, 448252), (4574, 368970), (5020, 336189), (5271, 320180), (6861, 245980), (7028, 240135), (7530, 224126), (8785, 192108), (9148, 184485), (10542, 160090), (11435, 147588), (12299, 137220), (13722, 122990), (15060, 112063), (16009, 105420), (17570, 96054), (21084, 80045), (22870, 73794), (24598, 68610), (26355, 64036), (27444, 61495), (32018, 52710), (34305, 49196), (35140, 48027), (36897, 45740)]