490219520

素因数分解:

$2^{11}\times 5^1\times 7^2\times {\mathrm{977}}^1$

素因数の和:1018

約数の個数: 144

約数和(自身を含む): 1369679220

約数和(自身を除く): 879459700

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 512, 560, 640, 784, 896, 977, 980, 1024, 1120, 1280, 1568, 1792, 1954, 1960, 2048, 2240, 2560, 3136, 3584, 3908, 3920, 4480, 4885, 5120, 6272, 6839, 7168, 7816, 7840, 8960, 9770, 10240, 12544, 13678, 14336, 15632, 15680, 17920, 19540, 25088, 27356, 31264, 31360, 34195, 35840, 39080, 47873, 50176, 54712, 62528, 62720, 68390, 71680, 78160, 95746, 100352, 109424, 125056, 125440, 136780, 156320, 191492, 218848, 239365, 250112, 250880, 273560, 312640, 382984, 437696, 478730, 500224, 501760, 547120, 625280, 765968, 875392, 957460, 1000448, 1094240, 1250560, 1531936, 1750784, 1914920, 2000896, 2188480, 2501120, 3063872, 3501568, 3829840, 4376960, 5002240, 6127744, 7003136, 7659680, 8753920, 10004480, 12255488, 14006272, 15319360, 17507840, 24510976, 30638720, 35015680, 49021952, 61277440, 70031360, 98043904, 122554880, 245109760, 490219520]

約数ペア:

[(1, 490219520), (2, 245109760), (4, 122554880), (5, 98043904), (7, 70031360), (8, 61277440), (10, 49021952), (14, 35015680), (16, 30638720), (20, 24510976), (28, 17507840), (32, 15319360), (35, 14006272), (40, 12255488), (49, 10004480), (56, 8753920), (64, 7659680), (70, 7003136), (80, 6127744), (98, 5002240), (112, 4376960), (128, 3829840), (140, 3501568), (160, 3063872), (196, 2501120), (224, 2188480), (245, 2000896), (256, 1914920), (280, 1750784), (320, 1531936), (392, 1250560), (448, 1094240), (490, 1000448), (512, 957460), (560, 875392), (640, 765968), (784, 625280), (896, 547120), (977, 501760), (980, 500224), (1024, 478730), (1120, 437696), (1280, 382984), (1568, 312640), (1792, 273560), (1954, 250880), (1960, 250112), (2048, 239365), (2240, 218848), (2560, 191492), (3136, 156320), (3584, 136780), (3908, 125440), (3920, 125056), (4480, 109424), (4885, 100352), (5120, 95746), (6272, 78160), (6839, 71680), (7168, 68390), (7816, 62720), (7840, 62528), (8960, 54712), (9770, 50176), (10240, 47873), (12544, 39080), (13678, 35840), (14336, 34195), (15632, 31360), (15680, 31264), (17920, 27356), (19540, 25088)]