311885280

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{30941}}^1$

素因数の和:30969

約数の個数: 144

約数和(自身を含む): 1216391904

約数和(自身を除く): 904506624

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 10080, 30941, 61882, 92823, 123764, 154705, 185646, 216587, 247528, 278469, 309410, 371292, 433174, 464115, 495056, 556938, 618820, 649761, 742584, 866348, 928230, 990112, 1082935, 1113876, 1237640, 1299522, 1392345, 1485168, 1732696, 1856460, 1949283, 2165870, 2227752, 2475280, 2599044, 2784690, 2970336, 3248805, 3465392, 3712920, 3898566, 4331740, 4455504, 4950560, 5198088, 5569380, 6497610, 6930784, 7425840, 7797132, 8663480, 8911008, 9746415, 10396176, 11138760, 12995220, 14851680, 15594264, 17326960, 19492830, 20792352, 22277520, 25990440, 31188528, 34653920, 38985660, 44555040, 51980880, 62377056, 77971320, 103961760, 155942640, 311885280]

約数ペア:

[(1, 311885280), (2, 155942640), (3, 103961760), (4, 77971320), (5, 62377056), (6, 51980880), (7, 44555040), (8, 38985660), (9, 34653920), (10, 31188528), (12, 25990440), (14, 22277520), (15, 20792352), (16, 19492830), (18, 17326960), (20, 15594264), (21, 14851680), (24, 12995220), (28, 11138760), (30, 10396176), (32, 9746415), (35, 8911008), (36, 8663480), (40, 7797132), (42, 7425840), (45, 6930784), (48, 6497610), (56, 5569380), (60, 5198088), (63, 4950560), (70, 4455504), (72, 4331740), (80, 3898566), (84, 3712920), (90, 3465392), (96, 3248805), (105, 2970336), (112, 2784690), (120, 2599044), (126, 2475280), (140, 2227752), (144, 2165870), (160, 1949283), (168, 1856460), (180, 1732696), (210, 1485168), (224, 1392345), (240, 1299522), (252, 1237640), (280, 1113876), (288, 1082935), (315, 990112), (336, 928230), (360, 866348), (420, 742584), (480, 649761), (504, 618820), (560, 556938), (630, 495056), (672, 464115), (720, 433174), (840, 371292), (1008, 309410), (1120, 278469), (1260, 247528), (1440, 216587), (1680, 185646), (2016, 154705), (2520, 123764), (3360, 92823), (5040, 61882), (10080, 30941)]