256077820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{2153}}^1$

素因数の和:2494

約数の個数: 48

約数和(自身を含む): 568139040

約数和(自身を除く): 312061220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 313, 380, 626, 1252, 1565, 2153, 3130, 4306, 5947, 6260, 8612, 10765, 11894, 21530, 23788, 29735, 40907, 43060, 59470, 81814, 118940, 163628, 204535, 409070, 673889, 818140, 1347778, 2695556, 3369445, 6738890, 12803891, 13477780, 25607782, 51215564, 64019455, 128038910, 256077820]

約数ペア:

[(1, 256077820), (2, 128038910), (4, 64019455), (5, 51215564), (10, 25607782), (19, 13477780), (20, 12803891), (38, 6738890), (76, 3369445), (95, 2695556), (190, 1347778), (313, 818140), (380, 673889), (626, 409070), (1252, 204535), (1565, 163628), (2153, 118940), (3130, 81814), (4306, 59470), (5947, 43060), (6260, 40907), (8612, 29735), (10765, 23788), (11894, 21530)]