20218592880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{53899}}^1$

素因数の和:54439

約数の個数: 120

約数和(自身を含む): 68032364400

約数和(自身を除く): 47813771520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 521, 720, 1042, 1563, 2084, 2605, 3126, 4168, 4689, 5210, 6252, 7815, 8336, 9378, 10420, 12504, 15630, 18756, 20840, 23445, 25008, 31260, 37512, 41680, 46890, 53899, 62520, 75024, 93780, 107798, 125040, 161697, 187560, 215596, 269495, 323394, 375120, 431192, 485091, 538990, 646788, 808485, 862384, 970182, 1077980, 1293576, 1616970, 1940364, 2155960, 2425455, 2587152, 3233940, 3880728, 4311920, 4850910, 6467880, 7761456, 9701820, 12935760, 19403640, 28081379, 38807280, 56162758, 84244137, 112325516, 140406895, 168488274, 224651032, 252732411, 280813790, 336976548, 421220685, 449302064, 505464822, 561627580, 673953096, 842441370, 1010929644, 1123255160, 1263662055, 1347906192, 1684882740, 2021859288, 2246510320, 2527324110, 3369765480, 4043718576, 5054648220, 6739530960, 10109296440, 20218592880]

約数ペア:

[(1, 20218592880), (2, 10109296440), (3, 6739530960), (4, 5054648220), (5, 4043718576), (6, 3369765480), (8, 2527324110), (9, 2246510320), (10, 2021859288), (12, 1684882740), (15, 1347906192), (16, 1263662055), (18, 1123255160), (20, 1010929644), (24, 842441370), (30, 673953096), (36, 561627580), (40, 505464822), (45, 449302064), (48, 421220685), (60, 336976548), (72, 280813790), (80, 252732411), (90, 224651032), (120, 168488274), (144, 140406895), (180, 112325516), (240, 84244137), (360, 56162758), (521, 38807280), (720, 28081379), (1042, 19403640), (1563, 12935760), (2084, 9701820), (2605, 7761456), (3126, 6467880), (4168, 4850910), (4689, 4311920), (5210, 3880728), (6252, 3233940), (7815, 2587152), (8336, 2425455), (9378, 2155960), (10420, 1940364), (12504, 1616970), (15630, 1293576), (18756, 1077980), (20840, 970182), (23445, 862384), (25008, 808485), (31260, 646788), (37512, 538990), (41680, 485091), (46890, 431192), (53899, 375120), (62520, 323394), (75024, 269495), (93780, 215596), (107798, 187560), (125040, 161697)]