281509380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{271}}^1$

素因数の和:514

約数の個数: 144

約数和(自身を含む): 891072000

約数和(自身を除く): 609562620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 199, 261, 271, 290, 348, 398, 435, 522, 542, 580, 597, 796, 813, 870, 995, 1044, 1084, 1194, 1305, 1355, 1626, 1740, 1791, 1990, 2388, 2439, 2610, 2710, 2985, 3252, 3582, 3980, 4065, 4878, 5220, 5420, 5771, 5970, 7164, 7859, 8130, 8955, 9756, 11542, 11940, 12195, 15718, 16260, 17313, 17910, 23084, 23577, 24390, 28855, 31436, 34626, 35820, 39295, 47154, 48780, 51939, 53929, 57710, 69252, 70731, 78590, 86565, 94308, 103878, 107858, 115420, 117885, 141462, 157180, 161787, 173130, 207756, 215716, 235770, 259695, 269645, 282924, 323574, 346260, 353655, 471540, 485361, 519390, 539290, 647148, 707310, 808935, 970722, 1038780, 1078580, 1414620, 1563941, 1617870, 1941444, 2426805, 3127882, 3235740, 4691823, 4853610, 6255764, 7819705, 9383646, 9707220, 14075469, 15639410, 18767292, 23459115, 28150938, 31278820, 46918230, 56301876, 70377345, 93836460, 140754690, 281509380]

約数ペア:

[(1, 281509380), (2, 140754690), (3, 93836460), (4, 70377345), (5, 56301876), (6, 46918230), (9, 31278820), (10, 28150938), (12, 23459115), (15, 18767292), (18, 15639410), (20, 14075469), (29, 9707220), (30, 9383646), (36, 7819705), (45, 6255764), (58, 4853610), (60, 4691823), (87, 3235740), (90, 3127882), (116, 2426805), (145, 1941444), (174, 1617870), (180, 1563941), (199, 1414620), (261, 1078580), (271, 1038780), (290, 970722), (348, 808935), (398, 707310), (435, 647148), (522, 539290), (542, 519390), (580, 485361), (597, 471540), (796, 353655), (813, 346260), (870, 323574), (995, 282924), (1044, 269645), (1084, 259695), (1194, 235770), (1305, 215716), (1355, 207756), (1626, 173130), (1740, 161787), (1791, 157180), (1990, 141462), (2388, 117885), (2439, 115420), (2610, 107858), (2710, 103878), (2985, 94308), (3252, 86565), (3582, 78590), (3980, 70731), (4065, 69252), (4878, 57710), (5220, 53929), (5420, 51939), (5771, 48780), (5970, 47154), (7164, 39295), (7859, 35820), (8130, 34626), (8955, 31436), (9756, 28855), (11542, 24390), (11940, 23577), (12195, 23084), (15718, 17910), (16260, 17313)]