1964515840

素因数分解:

$2^9\times 5^1\times 7^2\times {\mathrm{15661}}^1$

素因数の和:15698

約数の個数: 120

約数和(自身を含む): 5479601292

約数和(自身を除く): 3515085452

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, 980, 1120, 1280, 1568, 1792, 1960, 2240, 2560, 3136, 3584, 3920, 4480, 6272, 7840, 8960, 12544, 15661, 15680, 17920, 25088, 31322, 31360, 62644, 62720, 78305, 109627, 125288, 125440, 156610, 219254, 250576, 313220, 438508, 501152, 548135, 626440, 767389, 877016, 1002304, 1096270, 1252880, 1534778, 1754032, 2004608, 2192540, 2505760, 3069556, 3508064, 3836945, 4009216, 4385080, 5011520, 6139112, 7016128, 7673890, 8018432, 8770160, 10023040, 12278224, 14032256, 15347780, 17540320, 20046080, 24556448, 28064512, 30695560, 35080640, 40092160, 49112896, 56129024, 61391120, 70161280, 98225792, 122782240, 140322560, 196451584, 245564480, 280645120, 392903168, 491128960, 982257920, 1964515840]

約数ペア:

[(1, 1964515840), (2, 982257920), (4, 491128960), (5, 392903168), (7, 280645120), (8, 245564480), (10, 196451584), (14, 140322560), (16, 122782240), (20, 98225792), (28, 70161280), (32, 61391120), (35, 56129024), (40, 49112896), (49, 40092160), (56, 35080640), (64, 30695560), (70, 28064512), (80, 24556448), (98, 20046080), (112, 17540320), (128, 15347780), (140, 14032256), (160, 12278224), (196, 10023040), (224, 8770160), (245, 8018432), (256, 7673890), (280, 7016128), (320, 6139112), (392, 5011520), (448, 4385080), (490, 4009216), (512, 3836945), (560, 3508064), (640, 3069556), (784, 2505760), (896, 2192540), (980, 2004608), (1120, 1754032), (1280, 1534778), (1568, 1252880), (1792, 1096270), (1960, 1002304), (2240, 877016), (2560, 767389), (3136, 626440), (3584, 548135), (3920, 501152), (4480, 438508), (6272, 313220), (7840, 250576), (8960, 219254), (12544, 156610), (15661, 125440), (15680, 125288), (17920, 109627), (25088, 78305), (31322, 62720), (31360, 62644)]