71379620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{977}}^1$

素因数の和:1280

約数の個数: 48

約数和(自身を含む): 162168048

約数和(自身を除く): 90788428

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 281, 562, 977, 1124, 1405, 1954, 2810, 3653, 3908, 4885, 5620, 7306, 9770, 12701, 14612, 18265, 19540, 25402, 36530, 50804, 63505, 73060, 127010, 254020, 274537, 549074, 1098148, 1372685, 2745370, 3568981, 5490740, 7137962, 14275924, 17844905, 35689810, 71379620]

約数ペア:

[(1, 71379620), (2, 35689810), (4, 17844905), (5, 14275924), (10, 7137962), (13, 5490740), (20, 3568981), (26, 2745370), (52, 1372685), (65, 1098148), (130, 549074), (260, 274537), (281, 254020), (562, 127010), (977, 73060), (1124, 63505), (1405, 50804), (1954, 36530), (2810, 25402), (3653, 19540), (3908, 18265), (4885, 14612), (5620, 12701), (7306, 9770)]