279950720

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:225

約数の個数: 192

約数和(自身を含む): 795355200

約数和(自身を除く): 515404480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 79, 80, 98, 112, 113, 128, 140, 158, 160, 196, 224, 226, 245, 280, 316, 320, 392, 395, 448, 452, 490, 553, 560, 565, 632, 640, 784, 790, 791, 896, 904, 980, 1106, 1120, 1130, 1264, 1568, 1580, 1582, 1808, 1960, 2212, 2240, 2260, 2528, 2765, 3136, 3160, 3164, 3616, 3871, 3920, 3955, 4424, 4480, 4520, 5056, 5530, 5537, 6272, 6320, 6328, 7232, 7742, 7840, 7910, 8848, 8927, 9040, 10112, 11060, 11074, 12640, 12656, 14464, 15484, 15680, 15820, 17696, 17854, 18080, 19355, 22120, 22148, 25280, 25312, 27685, 30968, 31360, 31640, 35392, 35708, 36160, 38710, 44240, 44296, 44635, 50560, 50624, 55370, 61936, 62489, 63280, 70784, 71416, 72320, 77420, 88480, 88592, 89270, 101248, 110740, 123872, 124978, 126560, 142832, 154840, 176960, 177184, 178540, 221480, 247744, 249956, 253120, 285664, 309680, 312445, 353920, 354368, 357080, 437423, 442960, 495488, 499912, 506240, 571328, 619360, 624890, 708736, 714160, 874846, 885920, 999824, 1142656, 1238720, 1249780, 1428320, 1749692, 1771840, 1999648, 2187115, 2477440, 2499560, 2856640, 3499384, 3543680, 3999296, 4374230, 4999120, 5713280, 6998768, 7998592, 8748460, 9998240, 13997536, 17496920, 19996480, 27995072, 34993840, 39992960, 55990144, 69987680, 139975360, 279950720]

約数ペア:

[(1, 279950720), (2, 139975360), (4, 69987680), (5, 55990144), (7, 39992960), (8, 34993840), (10, 27995072), (14, 19996480), (16, 17496920), (20, 13997536), (28, 9998240), (32, 8748460), (35, 7998592), (40, 6998768), (49, 5713280), (56, 4999120), (64, 4374230), (70, 3999296), (79, 3543680), (80, 3499384), (98, 2856640), (112, 2499560), (113, 2477440), (128, 2187115), (140, 1999648), (158, 1771840), (160, 1749692), (196, 1428320), (224, 1249780), (226, 1238720), (245, 1142656), (280, 999824), (316, 885920), (320, 874846), (392, 714160), (395, 708736), (448, 624890), (452, 619360), (490, 571328), (553, 506240), (560, 499912), (565, 495488), (632, 442960), (640, 437423), (784, 357080), (790, 354368), (791, 353920), (896, 312445), (904, 309680), (980, 285664), (1106, 253120), (1120, 249956), (1130, 247744), (1264, 221480), (1568, 178540), (1580, 177184), (1582, 176960), (1808, 154840), (1960, 142832), (2212, 126560), (2240, 124978), (2260, 123872), (2528, 110740), (2765, 101248), (3136, 89270), (3160, 88592), (3164, 88480), (3616, 77420), (3871, 72320), (3920, 71416), (3955, 70784), (4424, 63280), (4480, 62489), (4520, 61936), (5056, 55370), (5530, 50624), (5537, 50560), (6272, 44635), (6320, 44296), (6328, 44240), (7232, 38710), (7742, 36160), (7840, 35708), (7910, 35392), (8848, 31640), (8927, 31360), (9040, 30968), (10112, 27685), (11060, 25312), (11074, 25280), (12640, 22148), (12656, 22120), (14464, 19355), (15484, 18080), (15680, 17854), (15820, 17696)]