20392680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2207}}^1$

素因数の和:2239

約数の個数: 128

約数和(自身を含む): 76308480

約数和(自身を除く): 55915800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2207, 2310, 3080, 4414, 4620, 6621, 8828, 9240, 11035, 13242, 15449, 17656, 22070, 24277, 26484, 30898, 33105, 44140, 46347, 48554, 52968, 61796, 66210, 72831, 77245, 88280, 92694, 97108, 121385, 123592, 132420, 145662, 154490, 169939, 185388, 194216, 231735, 242770, 264840, 291324, 308980, 339878, 364155, 370776, 463470, 485540, 509817, 582648, 617960, 679756, 728310, 849695, 926940, 971080, 1019634, 1359512, 1456620, 1699390, 1853880, 2039268, 2549085, 2913240, 3398780, 4078536, 5098170, 6797560, 10196340, 20392680]

約数ペア:

[(1, 20392680), (2, 10196340), (3, 6797560), (4, 5098170), (5, 4078536), (6, 3398780), (7, 2913240), (8, 2549085), (10, 2039268), (11, 1853880), (12, 1699390), (14, 1456620), (15, 1359512), (20, 1019634), (21, 971080), (22, 926940), (24, 849695), (28, 728310), (30, 679756), (33, 617960), (35, 582648), (40, 509817), (42, 485540), (44, 463470), (55, 370776), (56, 364155), (60, 339878), (66, 308980), (70, 291324), (77, 264840), (84, 242770), (88, 231735), (105, 194216), (110, 185388), (120, 169939), (132, 154490), (140, 145662), (154, 132420), (165, 123592), (168, 121385), (210, 97108), (220, 92694), (231, 88280), (264, 77245), (280, 72831), (308, 66210), (330, 61796), (385, 52968), (420, 48554), (440, 46347), (462, 44140), (616, 33105), (660, 30898), (770, 26484), (840, 24277), (924, 22070), (1155, 17656), (1320, 15449), (1540, 13242), (1848, 11035), (2207, 9240), (2310, 8828), (3080, 6621), (4414, 4620)]