28298620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1543}}^1$

素因数の和:1690

約数の個数: 48

約数和(自身を含む): 68479488

約数和(自身を除く): 40180868

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 131, 140, 262, 524, 655, 917, 1310, 1543, 1834, 2620, 3086, 3668, 4585, 6172, 7715, 9170, 10801, 15430, 18340, 21602, 30860, 43204, 54005, 108010, 202133, 216020, 404266, 808532, 1010665, 1414931, 2021330, 2829862, 4042660, 5659724, 7074655, 14149310, 28298620]

約数ペア:

[(1, 28298620), (2, 14149310), (4, 7074655), (5, 5659724), (7, 4042660), (10, 2829862), (14, 2021330), (20, 1414931), (28, 1010665), (35, 808532), (70, 404266), (131, 216020), (140, 202133), (262, 108010), (524, 54005), (655, 43204), (917, 30860), (1310, 21602), (1543, 18340), (1834, 15430), (2620, 10801), (3086, 9170), (3668, 7715), (4585, 6172)]