257591880

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2621}}^1$

素因数の和:2661

約数の個数: 256

約数和(自身を含む): 1057190400

約数和(自身を除く): 799598520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 20, 21, 24, 26, 27, 28, 30, 35, 36, 39, 40, 42, 45, 52, 54, 56, 60, 63, 65, 70, 72, 78, 84, 90, 91, 104, 105, 108, 117, 120, 126, 130, 135, 140, 156, 168, 180, 182, 189, 195, 210, 216, 234, 252, 260, 270, 273, 280, 312, 315, 351, 360, 364, 378, 390, 420, 455, 468, 504, 520, 540, 546, 585, 630, 702, 728, 756, 780, 819, 840, 910, 936, 945, 1080, 1092, 1170, 1260, 1365, 1404, 1512, 1560, 1638, 1755, 1820, 1890, 2184, 2340, 2457, 2520, 2621, 2730, 2808, 3276, 3510, 3640, 3780, 4095, 4680, 4914, 5242, 5460, 6552, 7020, 7560, 7863, 8190, 9828, 10484, 10920, 12285, 13105, 14040, 15726, 16380, 18347, 19656, 20968, 23589, 24570, 26210, 31452, 32760, 34073, 36694, 39315, 47178, 49140, 52420, 55041, 62904, 68146, 70767, 73388, 78630, 91735, 94356, 98280, 102219, 104840, 110082, 117945, 136292, 141534, 146776, 157260, 165123, 170365, 183470, 188712, 204438, 220164, 235890, 238511, 272584, 275205, 283068, 306657, 314520, 330246, 340730, 353835, 366940, 408876, 440328, 471780, 477022, 495369, 511095, 550410, 566136, 613314, 660492, 681460, 707670, 715533, 733880, 817752, 825615, 919971, 943560, 954044, 990738, 1022190, 1100820, 1192555, 1226628, 1320984, 1362920, 1415340, 1431066, 1533285, 1651230, 1839942, 1908088, 1981476, 2044380, 2146599, 2201640, 2385110, 2453256, 2476845, 2830680, 2862132, 3066570, 3302460, 3577665, 3679884, 3962952, 4088760, 4293198, 4599855, 4770220, 4953690, 5724264, 6133140, 6439797, 6604920, 7155330, 7359768, 8586396, 9199710, 9540440, 9907380, 10732995, 12266280, 12879594, 14310660, 17172792, 18399420, 19814760, 21465990, 25759188, 28621320, 32198985, 36798840, 42931980, 51518376, 64397970, 85863960, 128795940, 257591880]

約数ペア:

[(1, 257591880), (2, 128795940), (3, 85863960), (4, 64397970), (5, 51518376), (6, 42931980), (7, 36798840), (8, 32198985), (9, 28621320), (10, 25759188), (12, 21465990), (13, 19814760), (14, 18399420), (15, 17172792), (18, 14310660), (20, 12879594), (21, 12266280), (24, 10732995), (26, 9907380), (27, 9540440), (28, 9199710), (30, 8586396), (35, 7359768), (36, 7155330), (39, 6604920), (40, 6439797), (42, 6133140), (45, 5724264), (52, 4953690), (54, 4770220), (56, 4599855), (60, 4293198), (63, 4088760), (65, 3962952), (70, 3679884), (72, 3577665), (78, 3302460), (84, 3066570), (90, 2862132), (91, 2830680), (104, 2476845), (105, 2453256), (108, 2385110), (117, 2201640), (120, 2146599), (126, 2044380), (130, 1981476), (135, 1908088), (140, 1839942), (156, 1651230), (168, 1533285), (180, 1431066), (182, 1415340), (189, 1362920), (195, 1320984), (210, 1226628), (216, 1192555), (234, 1100820), (252, 1022190), (260, 990738), (270, 954044), (273, 943560), (280, 919971), (312, 825615), (315, 817752), (351, 733880), (360, 715533), (364, 707670), (378, 681460), (390, 660492), (420, 613314), (455, 566136), (468, 550410), (504, 511095), (520, 495369), (540, 477022), (546, 471780), (585, 440328), (630, 408876), (702, 366940), (728, 353835), (756, 340730), (780, 330246), (819, 314520), (840, 306657), (910, 283068), (936, 275205), (945, 272584), (1080, 238511), (1092, 235890), (1170, 220164), (1260, 204438), (1365, 188712), (1404, 183470), (1512, 170365), (1560, 165123), (1638, 157260), (1755, 146776), (1820, 141534), (1890, 136292), (2184, 117945), (2340, 110082), (2457, 104840), (2520, 102219), (2621, 98280), (2730, 94356), (2808, 91735), (3276, 78630), (3510, 73388), (3640, 70767), (3780, 68146), (4095, 62904), (4680, 55041), (4914, 52420), (5242, 49140), (5460, 47178), (6552, 39315), (7020, 36694), (7560, 34073), (7863, 32760), (8190, 31452), (9828, 26210), (10484, 24570), (10920, 23589), (12285, 20968), (13105, 19656), (14040, 18347), (15726, 16380)]