128421720

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{16987}}^1$

素因数の和:17014

約数の個数: 128

約数和(自身を含む): 489254400

約数和(自身を除く): 360832680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3780, 7560, 16987, 33974, 50961, 67948, 84935, 101922, 118909, 135896, 152883, 169870, 203844, 237818, 254805, 305766, 339740, 356727, 407688, 458649, 475636, 509610, 594545, 611532, 679480, 713454, 764415, 917298, 951272, 1019220, 1070181, 1189090, 1223064, 1426908, 1528830, 1783635, 1834596, 2038440, 2140362, 2293245, 2378180, 2853816, 3057660, 3210543, 3567270, 3669192, 4280724, 4586490, 4756360, 5350905, 6115320, 6421086, 7134540, 8561448, 9172980, 10701810, 12842172, 14269080, 16052715, 18345960, 21403620, 25684344, 32105430, 42807240, 64210860, 128421720]

約数ペア:

[(1, 128421720), (2, 64210860), (3, 42807240), (4, 32105430), (5, 25684344), (6, 21403620), (7, 18345960), (8, 16052715), (9, 14269080), (10, 12842172), (12, 10701810), (14, 9172980), (15, 8561448), (18, 7134540), (20, 6421086), (21, 6115320), (24, 5350905), (27, 4756360), (28, 4586490), (30, 4280724), (35, 3669192), (36, 3567270), (40, 3210543), (42, 3057660), (45, 2853816), (54, 2378180), (56, 2293245), (60, 2140362), (63, 2038440), (70, 1834596), (72, 1783635), (84, 1528830), (90, 1426908), (105, 1223064), (108, 1189090), (120, 1070181), (126, 1019220), (135, 951272), (140, 917298), (168, 764415), (180, 713454), (189, 679480), (210, 611532), (216, 594545), (252, 509610), (270, 475636), (280, 458649), (315, 407688), (360, 356727), (378, 339740), (420, 305766), (504, 254805), (540, 237818), (630, 203844), (756, 169870), (840, 152883), (945, 135896), (1080, 118909), (1260, 101922), (1512, 84935), (1890, 67948), (2520, 50961), (3780, 33974), (7560, 16987)]