156905105

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{283}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 229999104

約数和(自身を除く): 73093999

約数列:

[1, 5, 7, 31, 35, 49, 73, 155, 217, 245, 283, 365, 511, 1085, 1415, 1519, 1981, 2263, 2555, 3577, 7595, 8773, 9905, 11315, 13867, 15841, 17885, 20659, 43865, 61411, 69335, 79205, 103295, 110887, 144613, 307055, 429877, 554435, 640429, 723065, 1012291, 2149385, 3202145, 4483003, 5061455, 22415015, 31381021, 156905105]

約数ペア:

[(1, 156905105), (5, 31381021), (7, 22415015), (31, 5061455), (35, 4483003), (49, 3202145), (73, 2149385), (155, 1012291), (217, 723065), (245, 640429), (283, 554435), (365, 429877), (511, 307055), (1085, 144613), (1415, 110887), (1519, 103295), (1981, 79205), (2263, 69335), (2555, 61411), (3577, 43865), (7595, 20659), (8773, 17885), (9905, 15841), (11315, 13867)]