20801880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1$

素因数の和:151

約数の個数: 256

約数和(自身を含む): 80870400

約数和(自身を除く): 60068520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 17, 18, 20, 22, 24, 27, 30, 33, 34, 36, 40, 44, 45, 51, 54, 55, 60, 66, 68, 72, 85, 88, 90, 99, 102, 103, 108, 110, 120, 132, 135, 136, 153, 165, 170, 180, 187, 198, 204, 206, 216, 220, 255, 264, 270, 297, 306, 309, 330, 340, 360, 374, 396, 408, 412, 440, 459, 495, 510, 515, 540, 561, 594, 612, 618, 660, 680, 748, 765, 792, 824, 918, 927, 935, 990, 1020, 1030, 1080, 1122, 1133, 1188, 1224, 1236, 1320, 1485, 1496, 1530, 1545, 1683, 1751, 1836, 1854, 1870, 1980, 2040, 2060, 2244, 2266, 2295, 2376, 2472, 2781, 2805, 2970, 3060, 3090, 3366, 3399, 3502, 3672, 3708, 3740, 3960, 4120, 4488, 4532, 4590, 4635, 5049, 5253, 5562, 5610, 5665, 5940, 6120, 6180, 6732, 6798, 7004, 7416, 7480, 8415, 8755, 9064, 9180, 9270, 10098, 10197, 10506, 11124, 11220, 11330, 11880, 12360, 13464, 13596, 13905, 14008, 15759, 16830, 16995, 17510, 18360, 18540, 19261, 20196, 20394, 21012, 22248, 22440, 22660, 25245, 26265, 27192, 27810, 30591, 31518, 33660, 33990, 35020, 37080, 38522, 40392, 40788, 42024, 45320, 47277, 50490, 50985, 52530, 55620, 57783, 61182, 63036, 67320, 67980, 70040, 77044, 78795, 81576, 94554, 96305, 100980, 101970, 105060, 111240, 115566, 122364, 126072, 135960, 152955, 154088, 157590, 173349, 189108, 192610, 201960, 203940, 210120, 231132, 236385, 244728, 288915, 305910, 315180, 346698, 378216, 385220, 407880, 462264, 472770, 520047, 577830, 611820, 630360, 693396, 770440, 866745, 945540, 1040094, 1155660, 1223640, 1386792, 1733490, 1891080, 2080188, 2311320, 2600235, 3466980, 4160376, 5200470, 6933960, 10400940, 20801880]

約数ペア:

[(1, 20801880), (2, 10400940), (3, 6933960), (4, 5200470), (5, 4160376), (6, 3466980), (8, 2600235), (9, 2311320), (10, 2080188), (11, 1891080), (12, 1733490), (15, 1386792), (17, 1223640), (18, 1155660), (20, 1040094), (22, 945540), (24, 866745), (27, 770440), (30, 693396), (33, 630360), (34, 611820), (36, 577830), (40, 520047), (44, 472770), (45, 462264), (51, 407880), (54, 385220), (55, 378216), (60, 346698), (66, 315180), (68, 305910), (72, 288915), (85, 244728), (88, 236385), (90, 231132), (99, 210120), (102, 203940), (103, 201960), (108, 192610), (110, 189108), (120, 173349), (132, 157590), (135, 154088), (136, 152955), (153, 135960), (165, 126072), (170, 122364), (180, 115566), (187, 111240), (198, 105060), (204, 101970), (206, 100980), (216, 96305), (220, 94554), (255, 81576), (264, 78795), (270, 77044), (297, 70040), (306, 67980), (309, 67320), (330, 63036), (340, 61182), (360, 57783), (374, 55620), (396, 52530), (408, 50985), (412, 50490), (440, 47277), (459, 45320), (495, 42024), (510, 40788), (515, 40392), (540, 38522), (561, 37080), (594, 35020), (612, 33990), (618, 33660), (660, 31518), (680, 30591), (748, 27810), (765, 27192), (792, 26265), (824, 25245), (918, 22660), (927, 22440), (935, 22248), (990, 21012), (1020, 20394), (1030, 20196), (1080, 19261), (1122, 18540), (1133, 18360), (1188, 17510), (1224, 16995), (1236, 16830), (1320, 15759), (1485, 14008), (1496, 13905), (1530, 13596), (1545, 13464), (1683, 12360), (1751, 11880), (1836, 11330), (1854, 11220), (1870, 11124), (1980, 10506), (2040, 10197), (2060, 10098), (2244, 9270), (2266, 9180), (2295, 9064), (2376, 8755), (2472, 8415), (2781, 7480), (2805, 7416), (2970, 7004), (3060, 6798), (3090, 6732), (3366, 6180), (3399, 6120), (3502, 5940), (3672, 5665), (3708, 5610), (3740, 5562), (3960, 5253), (4120, 5049), (4488, 4635), (4532, 4590)]