257453760

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:303

約数の個数: 224

約数和(自身を含む): 868460544

約数和(自身を除く): 611006784

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 41, 48, 60, 62, 64, 80, 82, 93, 96, 120, 123, 124, 155, 160, 164, 186, 192, 205, 211, 240, 246, 248, 310, 320, 328, 372, 410, 422, 465, 480, 492, 496, 615, 620, 633, 656, 744, 820, 844, 930, 960, 984, 992, 1055, 1230, 1240, 1266, 1271, 1312, 1488, 1640, 1688, 1860, 1968, 1984, 2110, 2460, 2480, 2532, 2542, 2624, 2976, 3165, 3280, 3376, 3720, 3813, 3936, 4220, 4920, 4960, 5064, 5084, 5952, 6330, 6355, 6541, 6560, 6752, 7440, 7626, 7872, 8440, 8651, 9840, 9920, 10128, 10168, 12660, 12710, 13082, 13120, 13504, 14880, 15252, 16880, 17302, 19065, 19623, 19680, 20256, 20336, 25320, 25420, 25953, 26164, 29760, 30504, 32705, 33760, 34604, 38130, 39246, 39360, 40512, 40672, 43255, 50640, 50840, 51906, 52328, 61008, 65410, 67520, 69208, 76260, 78492, 81344, 86510, 98115, 101280, 101680, 103812, 104656, 122016, 129765, 130820, 138416, 152520, 156984, 173020, 196230, 202560, 203360, 207624, 209312, 244032, 259530, 261640, 268181, 276832, 305040, 313968, 346040, 392460, 406720, 415248, 418624, 519060, 523280, 536362, 553664, 610080, 627936, 692080, 784920, 804543, 830496, 1038120, 1046560, 1072724, 1220160, 1255872, 1340905, 1384160, 1569840, 1609086, 1660992, 2076240, 2093120, 2145448, 2681810, 2768320, 3139680, 3218172, 4022715, 4152480, 4290896, 5363620, 6279360, 6436344, 8045430, 8304960, 8581792, 10727240, 12872688, 16090860, 17163584, 21454480, 25745376, 32181720, 42908960, 51490752, 64363440, 85817920, 128726880, 257453760]

約数ペア:

[(1, 257453760), (2, 128726880), (3, 85817920), (4, 64363440), (5, 51490752), (6, 42908960), (8, 32181720), (10, 25745376), (12, 21454480), (15, 17163584), (16, 16090860), (20, 12872688), (24, 10727240), (30, 8581792), (31, 8304960), (32, 8045430), (40, 6436344), (41, 6279360), (48, 5363620), (60, 4290896), (62, 4152480), (64, 4022715), (80, 3218172), (82, 3139680), (93, 2768320), (96, 2681810), (120, 2145448), (123, 2093120), (124, 2076240), (155, 1660992), (160, 1609086), (164, 1569840), (186, 1384160), (192, 1340905), (205, 1255872), (211, 1220160), (240, 1072724), (246, 1046560), (248, 1038120), (310, 830496), (320, 804543), (328, 784920), (372, 692080), (410, 627936), (422, 610080), (465, 553664), (480, 536362), (492, 523280), (496, 519060), (615, 418624), (620, 415248), (633, 406720), (656, 392460), (744, 346040), (820, 313968), (844, 305040), (930, 276832), (960, 268181), (984, 261640), (992, 259530), (1055, 244032), (1230, 209312), (1240, 207624), (1266, 203360), (1271, 202560), (1312, 196230), (1488, 173020), (1640, 156984), (1688, 152520), (1860, 138416), (1968, 130820), (1984, 129765), (2110, 122016), (2460, 104656), (2480, 103812), (2532, 101680), (2542, 101280), (2624, 98115), (2976, 86510), (3165, 81344), (3280, 78492), (3376, 76260), (3720, 69208), (3813, 67520), (3936, 65410), (4220, 61008), (4920, 52328), (4960, 51906), (5064, 50840), (5084, 50640), (5952, 43255), (6330, 40672), (6355, 40512), (6541, 39360), (6560, 39246), (6752, 38130), (7440, 34604), (7626, 33760), (7872, 32705), (8440, 30504), (8651, 29760), (9840, 26164), (9920, 25953), (10128, 25420), (10168, 25320), (12660, 20336), (12710, 20256), (13082, 19680), (13120, 19623), (13504, 19065), (14880, 17302), (15252, 16880)]