261073568

素因数分解:

$2^5\times 7^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:227

約数の個数: 144

約数和(自身を含む): 637072128

約数和(自身を除く): 375998560

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 41, 49, 56, 62, 82, 98, 112, 124, 131, 164, 196, 217, 224, 248, 262, 287, 328, 392, 434, 496, 524, 574, 656, 784, 868, 917, 992, 1048, 1148, 1271, 1312, 1519, 1568, 1736, 1834, 2009, 2096, 2296, 2542, 3038, 3472, 3668, 4018, 4061, 4192, 4592, 5084, 5371, 6076, 6419, 6944, 7336, 8036, 8122, 8897, 9184, 10168, 10742, 12152, 12838, 14672, 16072, 16244, 17794, 20336, 21484, 24304, 25676, 28427, 29344, 32144, 32488, 35588, 37597, 40672, 42968, 48608, 51352, 56854, 62279, 64288, 64976, 71176, 75194, 85936, 102704, 113708, 124558, 129952, 142352, 150388, 166501, 171872, 198989, 205408, 227416, 249116, 263179, 284704, 300776, 333002, 397978, 454832, 498232, 526358, 601552, 666004, 795956, 909664, 996464, 1052716, 1165507, 1203104, 1332008, 1591912, 1992928, 2105432, 2331014, 2664016, 3183824, 4210864, 4662028, 5328032, 6367648, 8158549, 8421728, 9324056, 16317098, 18648112, 32634196, 37296224, 65268392, 130536784, 261073568]

約数ペア:

[(1, 261073568), (2, 130536784), (4, 65268392), (7, 37296224), (8, 32634196), (14, 18648112), (16, 16317098), (28, 9324056), (31, 8421728), (32, 8158549), (41, 6367648), (49, 5328032), (56, 4662028), (62, 4210864), (82, 3183824), (98, 2664016), (112, 2331014), (124, 2105432), (131, 1992928), (164, 1591912), (196, 1332008), (217, 1203104), (224, 1165507), (248, 1052716), (262, 996464), (287, 909664), (328, 795956), (392, 666004), (434, 601552), (496, 526358), (524, 498232), (574, 454832), (656, 397978), (784, 333002), (868, 300776), (917, 284704), (992, 263179), (1048, 249116), (1148, 227416), (1271, 205408), (1312, 198989), (1519, 171872), (1568, 166501), (1736, 150388), (1834, 142352), (2009, 129952), (2096, 124558), (2296, 113708), (2542, 102704), (3038, 85936), (3472, 75194), (3668, 71176), (4018, 64976), (4061, 64288), (4192, 62279), (4592, 56854), (5084, 51352), (5371, 48608), (6076, 42968), (6419, 40672), (6944, 37597), (7336, 35588), (8036, 32488), (8122, 32144), (8897, 29344), (9184, 28427), (10168, 25676), (10742, 24304), (12152, 21484), (12838, 20336), (14672, 17794), (16072, 16244)]