261748740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1$

素因数の和:490

約数の個数: 192

約数和(自身を含む): 855816192

約数和(自身を除く): 594067452

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 23, 30, 33, 43, 44, 46, 55, 60, 66, 69, 86, 92, 110, 115, 129, 132, 138, 165, 172, 215, 220, 230, 253, 258, 276, 330, 345, 401, 430, 460, 473, 506, 516, 645, 660, 690, 759, 802, 860, 946, 989, 1012, 1203, 1265, 1290, 1380, 1419, 1518, 1604, 1892, 1978, 2005, 2365, 2406, 2530, 2580, 2838, 2967, 3036, 3795, 3956, 4010, 4411, 4730, 4812, 4945, 5060, 5676, 5934, 6015, 7095, 7590, 8020, 8822, 9223, 9460, 9890, 10879, 11868, 12030, 13233, 14190, 14835, 15180, 17243, 17644, 18446, 19780, 21758, 22055, 24060, 26466, 27669, 28380, 29670, 32637, 34486, 36892, 43516, 44110, 46115, 51729, 52932, 54395, 55338, 59340, 65274, 66165, 68972, 86215, 88220, 92230, 101453, 103458, 108790, 110676, 130548, 132330, 138345, 163185, 172430, 184460, 189673, 202906, 206916, 217580, 258645, 264660, 276690, 304359, 326370, 344860, 379346, 396589, 405812, 507265, 517290, 553380, 569019, 608718, 652740, 758692, 793178, 948365, 1014530, 1034580, 1138038, 1189767, 1217436, 1521795, 1586356, 1896730, 1982945, 2029060, 2276076, 2379534, 2845095, 3043590, 3793460, 3965890, 4362479, 4759068, 5690190, 5948835, 6087180, 7931780, 8724958, 11380380, 11897670, 13087437, 17449916, 21812395, 23795340, 26174874, 43624790, 52349748, 65437185, 87249580, 130874370, 261748740]

約数ペア:

[(1, 261748740), (2, 130874370), (3, 87249580), (4, 65437185), (5, 52349748), (6, 43624790), (10, 26174874), (11, 23795340), (12, 21812395), (15, 17449916), (20, 13087437), (22, 11897670), (23, 11380380), (30, 8724958), (33, 7931780), (43, 6087180), (44, 5948835), (46, 5690190), (55, 4759068), (60, 4362479), (66, 3965890), (69, 3793460), (86, 3043590), (92, 2845095), (110, 2379534), (115, 2276076), (129, 2029060), (132, 1982945), (138, 1896730), (165, 1586356), (172, 1521795), (215, 1217436), (220, 1189767), (230, 1138038), (253, 1034580), (258, 1014530), (276, 948365), (330, 793178), (345, 758692), (401, 652740), (430, 608718), (460, 569019), (473, 553380), (506, 517290), (516, 507265), (645, 405812), (660, 396589), (690, 379346), (759, 344860), (802, 326370), (860, 304359), (946, 276690), (989, 264660), (1012, 258645), (1203, 217580), (1265, 206916), (1290, 202906), (1380, 189673), (1419, 184460), (1518, 172430), (1604, 163185), (1892, 138345), (1978, 132330), (2005, 130548), (2365, 110676), (2406, 108790), (2530, 103458), (2580, 101453), (2838, 92230), (2967, 88220), (3036, 86215), (3795, 68972), (3956, 66165), (4010, 65274), (4411, 59340), (4730, 55338), (4812, 54395), (4945, 52932), (5060, 51729), (5676, 46115), (5934, 44110), (6015, 43516), (7095, 36892), (7590, 34486), (8020, 32637), (8822, 29670), (9223, 28380), (9460, 27669), (9890, 26466), (10879, 24060), (11868, 22055), (12030, 21758), (13233, 19780), (14190, 18446), (14835, 17644), (15180, 17243)]