61391120

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{15661}}^1$

素因数の和:15688

約数の個数: 60

約数和(自身を含む): 166048524

約数和(自身を除く): 104657404

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 15661, 31322, 62644, 78305, 109627, 125288, 156610, 219254, 250576, 313220, 438508, 548135, 626440, 767389, 877016, 1096270, 1252880, 1534778, 1754032, 2192540, 3069556, 3836945, 4385080, 6139112, 7673890, 8770160, 12278224, 15347780, 30695560, 61391120]

約数ペア:

[(1, 61391120), (2, 30695560), (4, 15347780), (5, 12278224), (7, 8770160), (8, 7673890), (10, 6139112), (14, 4385080), (16, 3836945), (20, 3069556), (28, 2192540), (35, 1754032), (40, 1534778), (49, 1252880), (56, 1096270), (70, 877016), (80, 767389), (98, 626440), (112, 548135), (140, 438508), (196, 313220), (245, 250576), (280, 219254), (392, 156610), (490, 125288), (560, 109627), (784, 78305), (980, 62644), (1960, 31322), (3920, 15661)]