251961840

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{997}}^1$

素因数の和:1038

約数の個数: 240

約数和(自身を含む): 945960288

約数和(自身を除く): 693998448

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 81, 90, 104, 108, 117, 120, 130, 135, 144, 156, 162, 180, 195, 208, 216, 234, 240, 243, 260, 270, 312, 324, 351, 360, 390, 405, 432, 468, 486, 520, 540, 585, 624, 648, 702, 720, 780, 810, 936, 972, 997, 1040, 1053, 1080, 1170, 1215, 1296, 1404, 1560, 1620, 1755, 1872, 1944, 1994, 2106, 2160, 2340, 2430, 2808, 2991, 3120, 3159, 3240, 3510, 3888, 3988, 4212, 4680, 4860, 4985, 5265, 5616, 5982, 6318, 6480, 7020, 7976, 8424, 8973, 9360, 9720, 9970, 10530, 11964, 12636, 12961, 14040, 14955, 15795, 15952, 16848, 17946, 19440, 19940, 21060, 23928, 25272, 25922, 26919, 28080, 29910, 31590, 35892, 38883, 39880, 42120, 44865, 47856, 50544, 51844, 53838, 59820, 63180, 64805, 71784, 77766, 79760, 80757, 84240, 89730, 103688, 107676, 116649, 119640, 126360, 129610, 134595, 143568, 155532, 161514, 179460, 194415, 207376, 215352, 233298, 239280, 242271, 252720, 259220, 269190, 311064, 323028, 349947, 358920, 388830, 403785, 430704, 466596, 484542, 518440, 538380, 583245, 622128, 646056, 699894, 717840, 777660, 807570, 933192, 969084, 1036880, 1049841, 1076760, 1166490, 1211355, 1292112, 1399788, 1555320, 1615140, 1749735, 1866384, 1938168, 2099682, 2153520, 2332980, 2422710, 2799576, 3110640, 3149523, 3230280, 3499470, 3876336, 4199364, 4665960, 4845420, 5249205, 5599152, 6299046, 6460560, 6998940, 8398728, 9331920, 9690840, 10498410, 12598092, 13997880, 15747615, 16797456, 19381680, 20996820, 25196184, 27995760, 31495230, 41993640, 50392368, 62990460, 83987280, 125980920, 251961840]

約数ペア:

[(1, 251961840), (2, 125980920), (3, 83987280), (4, 62990460), (5, 50392368), (6, 41993640), (8, 31495230), (9, 27995760), (10, 25196184), (12, 20996820), (13, 19381680), (15, 16797456), (16, 15747615), (18, 13997880), (20, 12598092), (24, 10498410), (26, 9690840), (27, 9331920), (30, 8398728), (36, 6998940), (39, 6460560), (40, 6299046), (45, 5599152), (48, 5249205), (52, 4845420), (54, 4665960), (60, 4199364), (65, 3876336), (72, 3499470), (78, 3230280), (80, 3149523), (81, 3110640), (90, 2799576), (104, 2422710), (108, 2332980), (117, 2153520), (120, 2099682), (130, 1938168), (135, 1866384), (144, 1749735), (156, 1615140), (162, 1555320), (180, 1399788), (195, 1292112), (208, 1211355), (216, 1166490), (234, 1076760), (240, 1049841), (243, 1036880), (260, 969084), (270, 933192), (312, 807570), (324, 777660), (351, 717840), (360, 699894), (390, 646056), (405, 622128), (432, 583245), (468, 538380), (486, 518440), (520, 484542), (540, 466596), (585, 430704), (624, 403785), (648, 388830), (702, 358920), (720, 349947), (780, 323028), (810, 311064), (936, 269190), (972, 259220), (997, 252720), (1040, 242271), (1053, 239280), (1080, 233298), (1170, 215352), (1215, 207376), (1296, 194415), (1404, 179460), (1560, 161514), (1620, 155532), (1755, 143568), (1872, 134595), (1944, 129610), (1994, 126360), (2106, 119640), (2160, 116649), (2340, 107676), (2430, 103688), (2808, 89730), (2991, 84240), (3120, 80757), (3159, 79760), (3240, 77766), (3510, 71784), (3888, 64805), (3988, 63180), (4212, 59820), (4680, 53838), (4860, 51844), (4985, 50544), (5265, 47856), (5616, 44865), (5982, 42120), (6318, 39880), (6480, 38883), (7020, 35892), (7976, 31590), (8424, 29910), (8973, 28080), (9360, 26919), (9720, 25922), (9970, 25272), (10530, 23928), (11964, 21060), (12636, 19940), (12961, 19440), (14040, 17946), (14955, 16848), (15795, 15952)]