210572020

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1\times {\mathrm{449}}^1$

素因数の和:768

約数の個数: 48

約数和(自身を含む): 449064000

約数和(自身を除く): 238491980

約数列:

[1, 2, 4, 5, 10, 20, 131, 179, 262, 358, 449, 524, 655, 716, 895, 898, 1310, 1790, 1796, 2245, 2620, 3580, 4490, 8980, 23449, 46898, 58819, 80371, 93796, 117245, 117638, 160742, 234490, 235276, 294095, 321484, 401855, 468980, 588190, 803710, 1176380, 1607420, 10528601, 21057202, 42114404, 52643005, 105286010, 210572020]

約数ペア:

[(1, 210572020), (2, 105286010), (4, 52643005), (5, 42114404), (10, 21057202), (20, 10528601), (131, 1607420), (179, 1176380), (262, 803710), (358, 588190), (449, 468980), (524, 401855), (655, 321484), (716, 294095), (895, 235276), (898, 234490), (1310, 160742), (1790, 117638), (1796, 117245), (2245, 93796), (2620, 80371), (3580, 58819), (4490, 46898), (8980, 23449)]