128721836

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{251}}^1\times {\mathrm{4421}}^1$

素因数の和:4705

約数の個数: 24

約数和(自身を含む): 234012240

約数和(自身を除く): 105290404

約数列:

[1, 2, 4, 29, 58, 116, 251, 502, 1004, 4421, 7279, 8842, 14558, 17684, 29116, 128209, 256418, 512836, 1109671, 2219342, 4438684, 32180459, 64360918, 128721836]

約数ペア:

[(1, 128721836), (2, 64360918), (4, 32180459), (29, 4438684), (58, 2219342), (116, 1109671), (251, 512836), (502, 256418), (1004, 128209), (4421, 29116), (7279, 17684), (8842, 14558)]