661309736

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{20507}}^1$

素因数の和:20681

約数の個数: 32

約数和(自身を含む): 1292004000

約数和(自身を除く): 630694264

約数列:

[1, 2, 4, 8, 29, 58, 116, 139, 232, 278, 556, 1112, 4031, 8062, 16124, 20507, 32248, 41014, 82028, 164056, 594703, 1189406, 2378812, 2850473, 4757624, 5700946, 11401892, 22803784, 82663717, 165327434, 330654868, 661309736]

約数ペア:

[(1, 661309736), (2, 330654868), (4, 165327434), (8, 82663717), (29, 22803784), (58, 11401892), (116, 5700946), (139, 4757624), (232, 2850473), (278, 2378812), (556, 1189406), (1112, 594703), (4031, 164056), (8062, 82028), (16124, 41014), (20507, 32248)]