28820880

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1213}}^1$

素因数の和:1246

約数の個数: 160

約数和(自身を含む): 108385920

約数和(自身を除く): 79565040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 48, 54, 55, 60, 66, 72, 80, 88, 90, 99, 108, 110, 120, 132, 135, 144, 165, 176, 180, 198, 216, 220, 240, 264, 270, 297, 330, 360, 396, 432, 440, 495, 528, 540, 594, 660, 720, 792, 880, 990, 1080, 1188, 1213, 1320, 1485, 1584, 1980, 2160, 2376, 2426, 2640, 2970, 3639, 3960, 4752, 4852, 5940, 6065, 7278, 7920, 9704, 10917, 11880, 12130, 13343, 14556, 18195, 19408, 21834, 23760, 24260, 26686, 29112, 32751, 36390, 40029, 43668, 48520, 53372, 54585, 58224, 65502, 66715, 72780, 80058, 87336, 97040, 106744, 109170, 120087, 131004, 133430, 145560, 160116, 163755, 174672, 200145, 213488, 218340, 240174, 262008, 266860, 291120, 320232, 327510, 360261, 400290, 436680, 480348, 524016, 533720, 600435, 640464, 655020, 720522, 800580, 873360, 960696, 1067440, 1200870, 1310040, 1441044, 1601160, 1801305, 1921392, 2401740, 2620080, 2882088, 3202320, 3602610, 4803480, 5764176, 7205220, 9606960, 14410440, 28820880]

約数ペア:

[(1, 28820880), (2, 14410440), (3, 9606960), (4, 7205220), (5, 5764176), (6, 4803480), (8, 3602610), (9, 3202320), (10, 2882088), (11, 2620080), (12, 2401740), (15, 1921392), (16, 1801305), (18, 1601160), (20, 1441044), (22, 1310040), (24, 1200870), (27, 1067440), (30, 960696), (33, 873360), (36, 800580), (40, 720522), (44, 655020), (45, 640464), (48, 600435), (54, 533720), (55, 524016), (60, 480348), (66, 436680), (72, 400290), (80, 360261), (88, 327510), (90, 320232), (99, 291120), (108, 266860), (110, 262008), (120, 240174), (132, 218340), (135, 213488), (144, 200145), (165, 174672), (176, 163755), (180, 160116), (198, 145560), (216, 133430), (220, 131004), (240, 120087), (264, 109170), (270, 106744), (297, 97040), (330, 87336), (360, 80058), (396, 72780), (432, 66715), (440, 65502), (495, 58224), (528, 54585), (540, 53372), (594, 48520), (660, 43668), (720, 40029), (792, 36390), (880, 32751), (990, 29112), (1080, 26686), (1188, 24260), (1213, 23760), (1320, 21834), (1485, 19408), (1584, 18195), (1980, 14556), (2160, 13343), (2376, 12130), (2426, 11880), (2640, 10917), (2970, 9704), (3639, 7920), (3960, 7278), (4752, 6065), (4852, 5940)]