20792520

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1$

素因数の和:284

約数の個数: 192

約数和(自身を含む): 79672320

約数和(自身を除く): 58879800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 37, 40, 42, 45, 56, 60, 63, 70, 72, 74, 84, 90, 105, 111, 120, 126, 140, 148, 168, 180, 185, 210, 222, 223, 252, 259, 280, 296, 315, 333, 360, 370, 420, 444, 446, 504, 518, 555, 630, 666, 669, 740, 777, 840, 888, 892, 1036, 1110, 1115, 1260, 1295, 1332, 1338, 1480, 1554, 1561, 1665, 1784, 2007, 2072, 2220, 2230, 2331, 2520, 2590, 2664, 2676, 3108, 3122, 3330, 3345, 3885, 4014, 4440, 4460, 4662, 4683, 5180, 5352, 6216, 6244, 6660, 6690, 7770, 7805, 8028, 8251, 8920, 9324, 9366, 10035, 10360, 11655, 12488, 13320, 13380, 14049, 15540, 15610, 16056, 16502, 18648, 18732, 20070, 23310, 23415, 24753, 26760, 28098, 31080, 31220, 33004, 37464, 40140, 41255, 46620, 46830, 49506, 56196, 57757, 62440, 66008, 70245, 74259, 80280, 82510, 93240, 93660, 99012, 112392, 115514, 123765, 140490, 148518, 165020, 173271, 187320, 198024, 231028, 247530, 280980, 288785, 297036, 330040, 346542, 371295, 462056, 495060, 519813, 561960, 577570, 594072, 693084, 742590, 866355, 990120, 1039626, 1155140, 1386168, 1485180, 1732710, 2079252, 2310280, 2599065, 2970360, 3465420, 4158504, 5198130, 6930840, 10396260, 20792520]

約数ペア:

[(1, 20792520), (2, 10396260), (3, 6930840), (4, 5198130), (5, 4158504), (6, 3465420), (7, 2970360), (8, 2599065), (9, 2310280), (10, 2079252), (12, 1732710), (14, 1485180), (15, 1386168), (18, 1155140), (20, 1039626), (21, 990120), (24, 866355), (28, 742590), (30, 693084), (35, 594072), (36, 577570), (37, 561960), (40, 519813), (42, 495060), (45, 462056), (56, 371295), (60, 346542), (63, 330040), (70, 297036), (72, 288785), (74, 280980), (84, 247530), (90, 231028), (105, 198024), (111, 187320), (120, 173271), (126, 165020), (140, 148518), (148, 140490), (168, 123765), (180, 115514), (185, 112392), (210, 99012), (222, 93660), (223, 93240), (252, 82510), (259, 80280), (280, 74259), (296, 70245), (315, 66008), (333, 62440), (360, 57757), (370, 56196), (420, 49506), (444, 46830), (446, 46620), (504, 41255), (518, 40140), (555, 37464), (630, 33004), (666, 31220), (669, 31080), (740, 28098), (777, 26760), (840, 24753), (888, 23415), (892, 23310), (1036, 20070), (1110, 18732), (1115, 18648), (1260, 16502), (1295, 16056), (1332, 15610), (1338, 15540), (1480, 14049), (1554, 13380), (1561, 13320), (1665, 12488), (1784, 11655), (2007, 10360), (2072, 10035), (2220, 9366), (2230, 9324), (2331, 8920), (2520, 8251), (2590, 8028), (2664, 7805), (2676, 7770), (3108, 6690), (3122, 6660), (3330, 6244), (3345, 6216), (3885, 5352), (4014, 5180), (4440, 4683), (4460, 4662)]