1640121604

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{24379}}^1$

素因数の和:24544

約数の個数: 36

約数和(自身を含む): 3177689200

約数和(自身を除く): 1537567596

約数列:

[1, 2, 4, 11, 22, 44, 121, 139, 242, 278, 484, 556, 1529, 3058, 6116, 16819, 24379, 33638, 48758, 67276, 97516, 268169, 536338, 1072676, 2949859, 3388681, 5899718, 6777362, 11799436, 13554724, 37275491, 74550982, 149101964, 410030401, 820060802, 1640121604]

約数ペア:

[(1, 1640121604), (2, 820060802), (4, 410030401), (11, 149101964), (22, 74550982), (44, 37275491), (121, 13554724), (139, 11799436), (242, 6777362), (278, 5899718), (484, 3388681), (556, 2949859), (1529, 1072676), (3058, 536338), (6116, 268169), (16819, 97516), (24379, 67276), (33638, 48758)]