28550140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{641}}^1$

素因数の和:798

約数の個数: 48

約数和(自身を含む): 64066464

約数和(自身を除く): 35516324

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 131, 170, 262, 340, 524, 641, 655, 1282, 1310, 2227, 2564, 2620, 3205, 4454, 6410, 8908, 10897, 11135, 12820, 21794, 22270, 43588, 44540, 54485, 83971, 108970, 167942, 217940, 335884, 419855, 839710, 1427507, 1679420, 2855014, 5710028, 7137535, 14275070, 28550140]

約数ペア:

[(1, 28550140), (2, 14275070), (4, 7137535), (5, 5710028), (10, 2855014), (17, 1679420), (20, 1427507), (34, 839710), (68, 419855), (85, 335884), (131, 217940), (170, 167942), (262, 108970), (340, 83971), (524, 54485), (641, 44540), (655, 43588), (1282, 22270), (1310, 21794), (2227, 12820), (2564, 11135), (2620, 10897), (3205, 8908), (4454, 6410)]