251245540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:127

約数の個数: 216

約数和(自身を含む): 699210792

約数和(自身を除く): 447965252

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 37, 41, 49, 52, 65, 70, 74, 82, 91, 98, 130, 140, 148, 164, 169, 182, 185, 196, 205, 245, 259, 260, 287, 338, 364, 370, 410, 455, 481, 490, 518, 533, 574, 637, 676, 740, 820, 845, 910, 962, 980, 1036, 1066, 1148, 1183, 1274, 1295, 1435, 1517, 1690, 1813, 1820, 1924, 2009, 2132, 2366, 2405, 2548, 2590, 2665, 2870, 3034, 3185, 3367, 3380, 3626, 3731, 4018, 4732, 4810, 5180, 5330, 5740, 5915, 6068, 6253, 6370, 6734, 6929, 7252, 7462, 7585, 8036, 8281, 9065, 9620, 10045, 10619, 10660, 11830, 12506, 12740, 13468, 13858, 14924, 15170, 16562, 16835, 18130, 18655, 19721, 20090, 21238, 23569, 23660, 25012, 26117, 27716, 30340, 31265, 33124, 33670, 34645, 36260, 37310, 39442, 40180, 41405, 42476, 43771, 47138, 48503, 52234, 53095, 62530, 67340, 69290, 74333, 74620, 78884, 82810, 87542, 94276, 97006, 98605, 104468, 106190, 117845, 125060, 130585, 138047, 138580, 148666, 165620, 175084, 194012, 197210, 212380, 218855, 235690, 242515, 256373, 261170, 276094, 297332, 306397, 339521, 371665, 394420, 437710, 471380, 485030, 512746, 522340, 552188, 612794, 679042, 690235, 743330, 875420, 966329, 970060, 1025492, 1225588, 1281865, 1358084, 1380470, 1486660, 1531985, 1697605, 1794611, 1932658, 2563730, 2760940, 3063970, 3395210, 3589222, 3865316, 4831645, 5127460, 6127940, 6790420, 7178444, 8973055, 9663290, 12562277, 17946110, 19326580, 25124554, 35892220, 50249108, 62811385, 125622770, 251245540]

約数ペア:

[(1, 251245540), (2, 125622770), (4, 62811385), (5, 50249108), (7, 35892220), (10, 25124554), (13, 19326580), (14, 17946110), (20, 12562277), (26, 9663290), (28, 8973055), (35, 7178444), (37, 6790420), (41, 6127940), (49, 5127460), (52, 4831645), (65, 3865316), (70, 3589222), (74, 3395210), (82, 3063970), (91, 2760940), (98, 2563730), (130, 1932658), (140, 1794611), (148, 1697605), (164, 1531985), (169, 1486660), (182, 1380470), (185, 1358084), (196, 1281865), (205, 1225588), (245, 1025492), (259, 970060), (260, 966329), (287, 875420), (338, 743330), (364, 690235), (370, 679042), (410, 612794), (455, 552188), (481, 522340), (490, 512746), (518, 485030), (533, 471380), (574, 437710), (637, 394420), (676, 371665), (740, 339521), (820, 306397), (845, 297332), (910, 276094), (962, 261170), (980, 256373), (1036, 242515), (1066, 235690), (1148, 218855), (1183, 212380), (1274, 197210), (1295, 194012), (1435, 175084), (1517, 165620), (1690, 148666), (1813, 138580), (1820, 138047), (1924, 130585), (2009, 125060), (2132, 117845), (2366, 106190), (2405, 104468), (2548, 98605), (2590, 97006), (2665, 94276), (2870, 87542), (3034, 82810), (3185, 78884), (3367, 74620), (3380, 74333), (3626, 69290), (3731, 67340), (4018, 62530), (4732, 53095), (4810, 52234), (5180, 48503), (5330, 47138), (5740, 43771), (5915, 42476), (6068, 41405), (6253, 40180), (6370, 39442), (6734, 37310), (6929, 36260), (7252, 34645), (7462, 33670), (7585, 33124), (8036, 31265), (8281, 30340), (9065, 27716), (9620, 26117), (10045, 25012), (10619, 23660), (10660, 23569), (11830, 21238), (12506, 20090), (12740, 19721), (13468, 18655), (13858, 18130), (14924, 16835), (15170, 16562)]