251407520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{557}}^1$

素因数の和:623

約数の個数: 192

約数和(自身を含む): 755951616

約数和(自身を除く): 504544096

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 32, 35, 40, 52, 56, 62, 65, 70, 80, 91, 104, 112, 124, 130, 140, 155, 160, 182, 208, 217, 224, 248, 260, 280, 310, 364, 403, 416, 434, 455, 496, 520, 557, 560, 620, 728, 806, 868, 910, 992, 1040, 1085, 1114, 1120, 1240, 1456, 1612, 1736, 1820, 2015, 2080, 2170, 2228, 2480, 2785, 2821, 2912, 3224, 3472, 3640, 3899, 4030, 4340, 4456, 4960, 5570, 5642, 6448, 6944, 7241, 7280, 7798, 8060, 8680, 8912, 11140, 11284, 12896, 14105, 14482, 14560, 15596, 16120, 17267, 17360, 17824, 19495, 22280, 22568, 28210, 28964, 31192, 32240, 34534, 34720, 36205, 38990, 44560, 45136, 50687, 56420, 57928, 62384, 64480, 69068, 72410, 77980, 86335, 89120, 90272, 101374, 112840, 115856, 120869, 124768, 138136, 144820, 155960, 172670, 202748, 224471, 225680, 231712, 241738, 253435, 276272, 289640, 311920, 345340, 405496, 448942, 451360, 483476, 506870, 552544, 579280, 604345, 623840, 690680, 810992, 897884, 966952, 1013740, 1122355, 1158560, 1208690, 1381360, 1571297, 1621984, 1795768, 1933904, 2027480, 2244710, 2417380, 2762720, 3142594, 3591536, 3867808, 4054960, 4489420, 4834760, 6285188, 7183072, 7856485, 8109920, 8978840, 9669520, 12570376, 15712970, 17957680, 19339040, 25140752, 31425940, 35915360, 50281504, 62851880, 125703760, 251407520]

約数ペア:

[(1, 251407520), (2, 125703760), (4, 62851880), (5, 50281504), (7, 35915360), (8, 31425940), (10, 25140752), (13, 19339040), (14, 17957680), (16, 15712970), (20, 12570376), (26, 9669520), (28, 8978840), (31, 8109920), (32, 7856485), (35, 7183072), (40, 6285188), (52, 4834760), (56, 4489420), (62, 4054960), (65, 3867808), (70, 3591536), (80, 3142594), (91, 2762720), (104, 2417380), (112, 2244710), (124, 2027480), (130, 1933904), (140, 1795768), (155, 1621984), (160, 1571297), (182, 1381360), (208, 1208690), (217, 1158560), (224, 1122355), (248, 1013740), (260, 966952), (280, 897884), (310, 810992), (364, 690680), (403, 623840), (416, 604345), (434, 579280), (455, 552544), (496, 506870), (520, 483476), (557, 451360), (560, 448942), (620, 405496), (728, 345340), (806, 311920), (868, 289640), (910, 276272), (992, 253435), (1040, 241738), (1085, 231712), (1114, 225680), (1120, 224471), (1240, 202748), (1456, 172670), (1612, 155960), (1736, 144820), (1820, 138136), (2015, 124768), (2080, 120869), (2170, 115856), (2228, 112840), (2480, 101374), (2785, 90272), (2821, 89120), (2912, 86335), (3224, 77980), (3472, 72410), (3640, 69068), (3899, 64480), (4030, 62384), (4340, 57928), (4456, 56420), (4960, 50687), (5570, 45136), (5642, 44560), (6448, 38990), (6944, 36205), (7241, 34720), (7280, 34534), (7798, 32240), (8060, 31192), (8680, 28964), (8912, 28210), (11140, 22568), (11284, 22280), (12896, 19495), (14105, 17824), (14482, 17360), (14560, 17267), (15596, 16120)]