128411990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1697}}^1$

素因数の和:1781

約数の個数: 64

約数和(自身を含む): 281677824

約数和(自身を除く): 153265834

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 47, 70, 94, 115, 161, 230, 235, 322, 329, 470, 658, 805, 1081, 1610, 1645, 1697, 2162, 3290, 3394, 5405, 7567, 8485, 10810, 11879, 15134, 16970, 23758, 37835, 39031, 59395, 75670, 78062, 79759, 118790, 159518, 195155, 273217, 390310, 398795, 546434, 558313, 797590, 1116626, 1366085, 1834457, 2732170, 2791565, 3668914, 5583130, 9172285, 12841199, 18344570, 25682398, 64205995, 128411990]

約数ペア:

[(1, 128411990), (2, 64205995), (5, 25682398), (7, 18344570), (10, 12841199), (14, 9172285), (23, 5583130), (35, 3668914), (46, 2791565), (47, 2732170), (70, 1834457), (94, 1366085), (115, 1116626), (161, 797590), (230, 558313), (235, 546434), (322, 398795), (329, 390310), (470, 273217), (658, 195155), (805, 159518), (1081, 118790), (1610, 79759), (1645, 78062), (1697, 75670), (2162, 59395), (3290, 39031), (3394, 37835), (5405, 23758), (7567, 16970), (8485, 15134), (10810, 11879)]