128781316

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1163}}^1$

素因数の和:1264

約数の個数: 48

約数和(自身を含む): 250306560

約数和(自身を除く): 121525244

約数列:

[1, 2, 4, 19, 31, 38, 47, 62, 76, 94, 124, 188, 589, 893, 1163, 1178, 1457, 1786, 2326, 2356, 2914, 3572, 4652, 5828, 22097, 27683, 36053, 44194, 54661, 55366, 72106, 88388, 109322, 110732, 144212, 218644, 685007, 1038559, 1370014, 1694491, 2077118, 2740028, 3388982, 4154236, 6777964, 32195329, 64390658, 128781316]

約数ペア:

[(1, 128781316), (2, 64390658), (4, 32195329), (19, 6777964), (31, 4154236), (38, 3388982), (47, 2740028), (62, 2077118), (76, 1694491), (94, 1370014), (124, 1038559), (188, 685007), (589, 218644), (893, 144212), (1163, 110732), (1178, 109322), (1457, 88388), (1786, 72106), (2326, 55366), (2356, 54661), (2914, 44194), (3572, 36053), (4652, 27683), (5828, 22097)]