20107150

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{283}}^1$

素因数の和:338

約数の個数: 72

約数和(自身を含む): 45164520

約数和(自身を除く): 25057370

約数列:

[1, 2, 5, 7, 10, 14, 25, 29, 35, 49, 50, 58, 70, 98, 145, 175, 203, 245, 283, 290, 350, 406, 490, 566, 725, 1015, 1225, 1415, 1421, 1450, 1981, 2030, 2450, 2830, 2842, 3962, 5075, 7075, 7105, 8207, 9905, 10150, 13867, 14150, 14210, 16414, 19810, 27734, 35525, 41035, 49525, 57449, 69335, 71050, 82070, 99050, 114898, 138670, 205175, 287245, 346675, 402143, 410350, 574490, 693350, 804286, 1436225, 2010715, 2872450, 4021430, 10053575, 20107150]

約数ペア:

[(1, 20107150), (2, 10053575), (5, 4021430), (7, 2872450), (10, 2010715), (14, 1436225), (25, 804286), (29, 693350), (35, 574490), (49, 410350), (50, 402143), (58, 346675), (70, 287245), (98, 205175), (145, 138670), (175, 114898), (203, 99050), (245, 82070), (283, 71050), (290, 69335), (350, 57449), (406, 49525), (490, 41035), (566, 35525), (725, 27734), (1015, 19810), (1225, 16414), (1415, 14210), (1421, 14150), (1450, 13867), (1981, 10150), (2030, 9905), (2450, 8207), (2830, 7105), (2842, 7075), (3962, 5075)]