28451360

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{191}}^1$

素因数の和:239

約数の個数: 144

約数和(自身を含む): 82736640

約数和(自身を除く): 54285280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 160, 190, 191, 196, 224, 245, 266, 280, 304, 380, 382, 392, 490, 532, 560, 608, 665, 760, 764, 784, 931, 955, 980, 1064, 1120, 1330, 1337, 1520, 1528, 1568, 1862, 1910, 1960, 2128, 2660, 2674, 3040, 3056, 3629, 3724, 3820, 3920, 4256, 4655, 5320, 5348, 6112, 6685, 7258, 7448, 7640, 7840, 9310, 9359, 10640, 10696, 13370, 14516, 14896, 15280, 18145, 18620, 18718, 21280, 21392, 25403, 26740, 29032, 29792, 30560, 36290, 37240, 37436, 42784, 46795, 50806, 53480, 58064, 72580, 74480, 74872, 93590, 101612, 106960, 116128, 127015, 145160, 148960, 149744, 177821, 187180, 203224, 213920, 254030, 290320, 299488, 355642, 374360, 406448, 508060, 580640, 711284, 748720, 812896, 889105, 1016120, 1422568, 1497440, 1778210, 2032240, 2845136, 3556420, 4064480, 5690272, 7112840, 14225680, 28451360]

約数ペア:

[(1, 28451360), (2, 14225680), (4, 7112840), (5, 5690272), (7, 4064480), (8, 3556420), (10, 2845136), (14, 2032240), (16, 1778210), (19, 1497440), (20, 1422568), (28, 1016120), (32, 889105), (35, 812896), (38, 748720), (40, 711284), (49, 580640), (56, 508060), (70, 406448), (76, 374360), (80, 355642), (95, 299488), (98, 290320), (112, 254030), (133, 213920), (140, 203224), (152, 187180), (160, 177821), (190, 149744), (191, 148960), (196, 145160), (224, 127015), (245, 116128), (266, 106960), (280, 101612), (304, 93590), (380, 74872), (382, 74480), (392, 72580), (490, 58064), (532, 53480), (560, 50806), (608, 46795), (665, 42784), (760, 37436), (764, 37240), (784, 36290), (931, 30560), (955, 29792), (980, 29032), (1064, 26740), (1120, 25403), (1330, 21392), (1337, 21280), (1520, 18718), (1528, 18620), (1568, 18145), (1862, 15280), (1910, 14896), (1960, 14516), (2128, 13370), (2660, 10696), (2674, 10640), (3040, 9359), (3056, 9310), (3629, 7840), (3724, 7640), (3820, 7448), (3920, 7258), (4256, 6685), (4655, 6112), (5320, 5348)]