20857200

素因数分解:

$2^4\times 3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1$

素因数の和:232

約数の個数: 240

約数和(自身を含む): 82661376

約数和(自身を除く): 61804176

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 25, 26, 28, 30, 35, 39, 40, 42, 48, 50, 52, 56, 60, 65, 70, 75, 78, 80, 84, 91, 100, 104, 105, 112, 120, 130, 140, 150, 156, 168, 175, 182, 191, 195, 200, 208, 210, 240, 260, 273, 280, 300, 312, 325, 336, 350, 364, 382, 390, 400, 420, 455, 520, 525, 546, 560, 573, 600, 624, 650, 700, 728, 764, 780, 840, 910, 955, 975, 1040, 1050, 1092, 1146, 1200, 1300, 1337, 1365, 1400, 1456, 1528, 1560, 1680, 1820, 1910, 1950, 2100, 2184, 2275, 2292, 2483, 2600, 2674, 2730, 2800, 2865, 3056, 3120, 3640, 3820, 3900, 4011, 4200, 4368, 4550, 4584, 4775, 4966, 5200, 5348, 5460, 5730, 6685, 6825, 7280, 7449, 7640, 7800, 8022, 8400, 9100, 9168, 9550, 9932, 10696, 10920, 11460, 12415, 13370, 13650, 14325, 14898, 15280, 15600, 16044, 17381, 18200, 19100, 19864, 20055, 21392, 21840, 22920, 24830, 26740, 27300, 28650, 29796, 32088, 33425, 34762, 36400, 37245, 38200, 39728, 40110, 45840, 49660, 52143, 53480, 54600, 57300, 59592, 62075, 64176, 66850, 69524, 74490, 76400, 80220, 86905, 99320, 100275, 104286, 106960, 109200, 114600, 119184, 124150, 133700, 139048, 148980, 160440, 173810, 186225, 198640, 200550, 208572, 229200, 248300, 260715, 267400, 278096, 297960, 320880, 347620, 372450, 401100, 417144, 434525, 496600, 521430, 534800, 595920, 695240, 744900, 802200, 834288, 869050, 993200, 1042860, 1303575, 1390480, 1489800, 1604400, 1738100, 2085720, 2607150, 2979600, 3476200, 4171440, 5214300, 6952400, 10428600, 20857200]

約数ペア:

[(1, 20857200), (2, 10428600), (3, 6952400), (4, 5214300), (5, 4171440), (6, 3476200), (7, 2979600), (8, 2607150), (10, 2085720), (12, 1738100), (13, 1604400), (14, 1489800), (15, 1390480), (16, 1303575), (20, 1042860), (21, 993200), (24, 869050), (25, 834288), (26, 802200), (28, 744900), (30, 695240), (35, 595920), (39, 534800), (40, 521430), (42, 496600), (48, 434525), (50, 417144), (52, 401100), (56, 372450), (60, 347620), (65, 320880), (70, 297960), (75, 278096), (78, 267400), (80, 260715), (84, 248300), (91, 229200), (100, 208572), (104, 200550), (105, 198640), (112, 186225), (120, 173810), (130, 160440), (140, 148980), (150, 139048), (156, 133700), (168, 124150), (175, 119184), (182, 114600), (191, 109200), (195, 106960), (200, 104286), (208, 100275), (210, 99320), (240, 86905), (260, 80220), (273, 76400), (280, 74490), (300, 69524), (312, 66850), (325, 64176), (336, 62075), (350, 59592), (364, 57300), (382, 54600), (390, 53480), (400, 52143), (420, 49660), (455, 45840), (520, 40110), (525, 39728), (546, 38200), (560, 37245), (573, 36400), (600, 34762), (624, 33425), (650, 32088), (700, 29796), (728, 28650), (764, 27300), (780, 26740), (840, 24830), (910, 22920), (955, 21840), (975, 21392), (1040, 20055), (1050, 19864), (1092, 19100), (1146, 18200), (1200, 17381), (1300, 16044), (1337, 15600), (1365, 15280), (1400, 14898), (1456, 14325), (1528, 13650), (1560, 13370), (1680, 12415), (1820, 11460), (1910, 10920), (1950, 10696), (2100, 9932), (2184, 9550), (2275, 9168), (2292, 9100), (2483, 8400), (2600, 8022), (2674, 7800), (2730, 7640), (2800, 7449), (2865, 7280), (3056, 6825), (3120, 6685), (3640, 5730), (3820, 5460), (3900, 5348), (4011, 5200), (4200, 4966), (4368, 4775), (4550, 4584)]