31988880

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{577}}^1$

素因数の和:614

約数の個数: 240

約数和(自身を含む): 134169984

約数和(自身を除く): 102181104

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 40, 42, 44, 45, 48, 55, 56, 60, 63, 66, 70, 72, 77, 80, 84, 88, 90, 99, 105, 110, 112, 120, 126, 132, 140, 144, 154, 165, 168, 176, 180, 198, 210, 220, 231, 240, 252, 264, 280, 308, 315, 330, 336, 360, 385, 396, 420, 440, 462, 495, 504, 528, 560, 577, 616, 630, 660, 693, 720, 770, 792, 840, 880, 924, 990, 1008, 1154, 1155, 1232, 1260, 1320, 1386, 1540, 1584, 1680, 1731, 1848, 1980, 2308, 2310, 2520, 2640, 2772, 2885, 3080, 3462, 3465, 3696, 3960, 4039, 4616, 4620, 5040, 5193, 5544, 5770, 6160, 6347, 6924, 6930, 7920, 8078, 8655, 9232, 9240, 10386, 11088, 11540, 12117, 12694, 13848, 13860, 16156, 17310, 18480, 19041, 20195, 20772, 23080, 24234, 25388, 25965, 27696, 27720, 31735, 32312, 34620, 36351, 38082, 40390, 41544, 44429, 46160, 48468, 50776, 51930, 55440, 57123, 60585, 63470, 64624, 69240, 72702, 76164, 80780, 83088, 88858, 95205, 96936, 101552, 103860, 114246, 121170, 126940, 133287, 138480, 145404, 152328, 161560, 177716, 181755, 190410, 193872, 207720, 222145, 228492, 242340, 253880, 266574, 285615, 290808, 304656, 323120, 355432, 363510, 380820, 399861, 415440, 444290, 456984, 484680, 507760, 533148, 571230, 581616, 666435, 710864, 727020, 761640, 799722, 888580, 913968, 969360, 1066296, 1142460, 1332870, 1454040, 1523280, 1599444, 1777160, 1999305, 2132592, 2284920, 2665740, 2908080, 3198888, 3554320, 3998610, 4569840, 5331480, 6397776, 7997220, 10662960, 15994440, 31988880]

約数ペア:

[(1, 31988880), (2, 15994440), (3, 10662960), (4, 7997220), (5, 6397776), (6, 5331480), (7, 4569840), (8, 3998610), (9, 3554320), (10, 3198888), (11, 2908080), (12, 2665740), (14, 2284920), (15, 2132592), (16, 1999305), (18, 1777160), (20, 1599444), (21, 1523280), (22, 1454040), (24, 1332870), (28, 1142460), (30, 1066296), (33, 969360), (35, 913968), (36, 888580), (40, 799722), (42, 761640), (44, 727020), (45, 710864), (48, 666435), (55, 581616), (56, 571230), (60, 533148), (63, 507760), (66, 484680), (70, 456984), (72, 444290), (77, 415440), (80, 399861), (84, 380820), (88, 363510), (90, 355432), (99, 323120), (105, 304656), (110, 290808), (112, 285615), (120, 266574), (126, 253880), (132, 242340), (140, 228492), (144, 222145), (154, 207720), (165, 193872), (168, 190410), (176, 181755), (180, 177716), (198, 161560), (210, 152328), (220, 145404), (231, 138480), (240, 133287), (252, 126940), (264, 121170), (280, 114246), (308, 103860), (315, 101552), (330, 96936), (336, 95205), (360, 88858), (385, 83088), (396, 80780), (420, 76164), (440, 72702), (462, 69240), (495, 64624), (504, 63470), (528, 60585), (560, 57123), (577, 55440), (616, 51930), (630, 50776), (660, 48468), (693, 46160), (720, 44429), (770, 41544), (792, 40390), (840, 38082), (880, 36351), (924, 34620), (990, 32312), (1008, 31735), (1154, 27720), (1155, 27696), (1232, 25965), (1260, 25388), (1320, 24234), (1386, 23080), (1540, 20772), (1584, 20195), (1680, 19041), (1731, 18480), (1848, 17310), (1980, 16156), (2308, 13860), (2310, 13848), (2520, 12694), (2640, 12117), (2772, 11540), (2885, 11088), (3080, 10386), (3462, 9240), (3465, 9232), (3696, 8655), (3960, 8078), (4039, 7920), (4616, 6930), (4620, 6924), (5040, 6347), (5193, 6160), (5544, 5770)]