221221560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{167}}^1$

素因数の和:290

約数の個数: 256

約数和(自身を含む): 812851200

約数和(自身を除く): 591629640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 83, 84, 95, 105, 114, 120, 133, 140, 152, 166, 167, 168, 190, 210, 228, 249, 266, 280, 285, 332, 334, 380, 399, 415, 420, 456, 498, 501, 532, 570, 581, 664, 665, 668, 760, 798, 830, 835, 840, 996, 1002, 1064, 1140, 1162, 1169, 1245, 1330, 1336, 1577, 1596, 1660, 1670, 1743, 1992, 1995, 2004, 2280, 2324, 2338, 2490, 2505, 2660, 2905, 3154, 3173, 3192, 3320, 3340, 3486, 3507, 3990, 4008, 4648, 4676, 4731, 4980, 5010, 5320, 5810, 5845, 6308, 6346, 6680, 6972, 7014, 7885, 7980, 8715, 9352, 9462, 9519, 9960, 10020, 11039, 11620, 11690, 12616, 12692, 13861, 13944, 14028, 15770, 15865, 15960, 17430, 17535, 18924, 19038, 20040, 22078, 22211, 23240, 23380, 23655, 25384, 27722, 28056, 31540, 31730, 33117, 34860, 35070, 37848, 38076, 41583, 44156, 44422, 46760, 47310, 47595, 55195, 55444, 63080, 63460, 66234, 66633, 69305, 69720, 70140, 76152, 83166, 88312, 88844, 94620, 95190, 97027, 110390, 110888, 111055, 126920, 132468, 133266, 138610, 140280, 165585, 166332, 177688, 189240, 190380, 194054, 207915, 220780, 222110, 263359, 264936, 266532, 277220, 291081, 331170, 332664, 333165, 380760, 388108, 415830, 441560, 444220, 485135, 526718, 533064, 554440, 582162, 662340, 666330, 776216, 790077, 831660, 888440, 970270, 1053436, 1164324, 1316795, 1324680, 1332660, 1455405, 1580154, 1663320, 1843513, 1940540, 2106872, 2328648, 2633590, 2665320, 2910810, 3160308, 3687026, 3881080, 3950385, 5267180, 5530539, 5821620, 6320616, 7374052, 7900770, 9217565, 10534360, 11061078, 11643240, 14748104, 15801540, 18435130, 22122156, 27652695, 31603080, 36870260, 44244312, 55305390, 73740520, 110610780, 221221560]

約数ペア:

[(1, 221221560), (2, 110610780), (3, 73740520), (4, 55305390), (5, 44244312), (6, 36870260), (7, 31603080), (8, 27652695), (10, 22122156), (12, 18435130), (14, 15801540), (15, 14748104), (19, 11643240), (20, 11061078), (21, 10534360), (24, 9217565), (28, 7900770), (30, 7374052), (35, 6320616), (38, 5821620), (40, 5530539), (42, 5267180), (56, 3950385), (57, 3881080), (60, 3687026), (70, 3160308), (76, 2910810), (83, 2665320), (84, 2633590), (95, 2328648), (105, 2106872), (114, 1940540), (120, 1843513), (133, 1663320), (140, 1580154), (152, 1455405), (166, 1332660), (167, 1324680), (168, 1316795), (190, 1164324), (210, 1053436), (228, 970270), (249, 888440), (266, 831660), (280, 790077), (285, 776216), (332, 666330), (334, 662340), (380, 582162), (399, 554440), (415, 533064), (420, 526718), (456, 485135), (498, 444220), (501, 441560), (532, 415830), (570, 388108), (581, 380760), (664, 333165), (665, 332664), (668, 331170), (760, 291081), (798, 277220), (830, 266532), (835, 264936), (840, 263359), (996, 222110), (1002, 220780), (1064, 207915), (1140, 194054), (1162, 190380), (1169, 189240), (1245, 177688), (1330, 166332), (1336, 165585), (1577, 140280), (1596, 138610), (1660, 133266), (1670, 132468), (1743, 126920), (1992, 111055), (1995, 110888), (2004, 110390), (2280, 97027), (2324, 95190), (2338, 94620), (2490, 88844), (2505, 88312), (2660, 83166), (2905, 76152), (3154, 70140), (3173, 69720), (3192, 69305), (3320, 66633), (3340, 66234), (3486, 63460), (3507, 63080), (3990, 55444), (4008, 55195), (4648, 47595), (4676, 47310), (4731, 46760), (4980, 44422), (5010, 44156), (5320, 41583), (5810, 38076), (5845, 37848), (6308, 35070), (6346, 34860), (6680, 33117), (6972, 31730), (7014, 31540), (7885, 28056), (7980, 27722), (8715, 25384), (9352, 23655), (9462, 23380), (9519, 23240), (9960, 22211), (10020, 22078), (11039, 20040), (11620, 19038), (11690, 18924), (12616, 17535), (12692, 17430), (13861, 15960), (13944, 15865), (14028, 15770)]