16726780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{761}}^1$

素因数の和:934

約数の個数: 48

約数和(自身を含む): 40453056

約数和(自身を除く): 23726276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 761, 785, 1099, 1522, 1570, 2198, 3044, 3140, 3805, 4396, 5327, 5495, 7610, 10654, 10990, 15220, 21308, 21980, 26635, 53270, 106540, 119477, 238954, 477908, 597385, 836339, 1194770, 1672678, 2389540, 3345356, 4181695, 8363390, 16726780]

約数ペア:

[(1, 16726780), (2, 8363390), (4, 4181695), (5, 3345356), (7, 2389540), (10, 1672678), (14, 1194770), (20, 836339), (28, 597385), (35, 477908), (70, 238954), (140, 119477), (157, 106540), (314, 53270), (628, 26635), (761, 21980), (785, 21308), (1099, 15220), (1522, 10990), (1570, 10654), (2198, 7610), (3044, 5495), (3140, 5327), (3805, 4396)]