490207900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{523}}^1$

素因数の和:660

約数の個数: 144

約数和(自身を含む): 1324470784

約数和(自身を除く): 834262884

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 103, 130, 140, 175, 182, 206, 260, 325, 350, 364, 412, 455, 515, 523, 650, 700, 721, 910, 1030, 1046, 1300, 1339, 1442, 1820, 2060, 2092, 2275, 2575, 2615, 2678, 2884, 3605, 3661, 4550, 5150, 5230, 5356, 6695, 6799, 7210, 7322, 9100, 9373, 10300, 10460, 13075, 13390, 13598, 14420, 14644, 18025, 18305, 18746, 26150, 26780, 27196, 33475, 33995, 36050, 36610, 37492, 46865, 47593, 52300, 53869, 66950, 67990, 72100, 73220, 91525, 93730, 95186, 107738, 133900, 135980, 169975, 183050, 187460, 190372, 215476, 234325, 237965, 269345, 339950, 366100, 377083, 468650, 475930, 538690, 679900, 700297, 754166, 937300, 951860, 1077380, 1189825, 1346725, 1400594, 1508332, 1885415, 2379650, 2693450, 2801188, 3501485, 3770830, 4759300, 4902079, 5386900, 7002970, 7541660, 9427075, 9804158, 14005940, 17507425, 18854150, 19608316, 24510395, 35014850, 37708300, 49020790, 70029700, 98041580, 122551975, 245103950, 490207900]

約数ペア:

[(1, 490207900), (2, 245103950), (4, 122551975), (5, 98041580), (7, 70029700), (10, 49020790), (13, 37708300), (14, 35014850), (20, 24510395), (25, 19608316), (26, 18854150), (28, 17507425), (35, 14005940), (50, 9804158), (52, 9427075), (65, 7541660), (70, 7002970), (91, 5386900), (100, 4902079), (103, 4759300), (130, 3770830), (140, 3501485), (175, 2801188), (182, 2693450), (206, 2379650), (260, 1885415), (325, 1508332), (350, 1400594), (364, 1346725), (412, 1189825), (455, 1077380), (515, 951860), (523, 937300), (650, 754166), (700, 700297), (721, 679900), (910, 538690), (1030, 475930), (1046, 468650), (1300, 377083), (1339, 366100), (1442, 339950), (1820, 269345), (2060, 237965), (2092, 234325), (2275, 215476), (2575, 190372), (2615, 187460), (2678, 183050), (2884, 169975), (3605, 135980), (3661, 133900), (4550, 107738), (5150, 95186), (5230, 93730), (5356, 91525), (6695, 73220), (6799, 72100), (7210, 67990), (7322, 66950), (9100, 53869), (9373, 52300), (10300, 47593), (10460, 46865), (13075, 37492), (13390, 36610), (13598, 36050), (14420, 33995), (14644, 33475), (18025, 27196), (18305, 26780), (18746, 26150)]