2810140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 6350400

約数和(自身を除く): 3540260

約数列:

[1, 2, 4, 5, 10, 20, 23, 41, 46, 82, 92, 115, 149, 164, 205, 230, 298, 410, 460, 596, 745, 820, 943, 1490, 1886, 2980, 3427, 3772, 4715, 6109, 6854, 9430, 12218, 13708, 17135, 18860, 24436, 30545, 34270, 61090, 68540, 122180, 140507, 281014, 562028, 702535, 1405070, 2810140]

約数ペア:

[(1, 2810140), (2, 1405070), (4, 702535), (5, 562028), (10, 281014), (20, 140507), (23, 122180), (41, 68540), (46, 61090), (82, 34270), (92, 30545), (115, 24436), (149, 18860), (164, 17135), (205, 13708), (230, 12218), (298, 9430), (410, 6854), (460, 6109), (596, 4715), (745, 3772), (820, 3427), (943, 2980), (1490, 1886)]